# Is it possible to change the 4-letter search limit?

**URL:** https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194
**Category:** About This Message Board
**Created:** [June 28, 2011, 10:27pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194 "2011-06-28T22:27:40Z")
**Posts on this page:** 20
**Page:** 1

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### Author: ![Stoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/stoid/32/272_2.png) [@Stoid](https://boards.straightdope.com/u/Stoid)
#### Post date: [June 28, 2011, 10:27pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/1 "2011-06-28T22:27:40Z")

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WAY too many meaningful words are three letters! Two most recent searches that failed because they were 3 letters: CSS and FOX.

Wah.

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### Author: ![TubaDiva](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tubadiva/32/507_2.png) [@TubaDiva](https://boards.straightdope.com/u/TubaDiva)
#### Post date: [June 28, 2011, 10:47pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/2 "2011-06-28T22:47:45Z")

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Searches are about the most intensive thing the system does – we’ve always had to balance the resources used for searches versus all the other needs of the site, including rendering pages and writing posts.

We settled on the limit that we did because that seems to be the best balance of needs and makes the most equitable use of resources. If we went down any further it would affect everything else the system does in a profoundly negative direction.

You might try using Google for your more intensive searches and bypassing the faulty SDMB search engine altogether. Please see this excellent posting on the subject here:

[http://boards.straightdope.com/sdmb/showthread.php?p=11650034#post11650034](http://boards.straightdope.com/sdmb/showthread.php?p=11650034#post11650034)

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### Author: ![Peter\_Morris](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/peter_morris/32/359_2.png) [@Peter\_Morris](https://boards.straightdope.com/u/Peter_Morris)
#### Post date: [June 29, 2011, 12:03pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/3 "2011-06-29T12:03:10Z")

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Has Google indexed the whole site yet? Last I heard, a Google search typically missed about half the posts compared to a similar board search.

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### Author: ![VinylTurnip](https://avatars.discourse-cdn.com/v4/letter/v/b2d939/32.png) [@VinylTurnip](https://boards.straightdope.com/u/VinylTurnip)
#### Post date: [June 29, 2011, 1:59pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/4 "2011-06-29T13:59:08Z")

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It hasn’t bothered me yet on this site, but this same issue has caused great me frustration when trying to search other fora, particularly technical/product support boards. In some cases it renders the search function practically useless— making it impossible to search for (most) file extension types and a great number of acronyms.

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### Author: ![Giles](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/giles/32/60_2.png) [@Giles](https://boards.straightdope.com/u/Giles)
#### Post date: [June 29, 2011, 2:08pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/5 "2011-06-29T14:08:14Z")

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I gather that the problem is that the limitation has to be on number of letters, and not on a stop-word list. If you could search on three-letter words, you would require the system to search on very common words like “the” and “and”, which are not terribly useful in searching. I suspect that the use of stop words would require major work on the software.

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### Author: ![TubaDiva](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tubadiva/32/507_2.png) [@TubaDiva](https://boards.straightdope.com/u/TubaDiva)
#### Post date: [June 29, 2011, 2:22pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/6 "2011-06-29T14:22:11Z")

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vB says:

> [@](#):
>
> **Search Index Minimum Word Length**
> 
> When using the vBulletin default search, this option limits the size of indexed words. The smaller this number is, the larger your search index, and conversely your database is going to be.

Including three letter words makes the database insanely large.

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### Author: ![Munch](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/munch/32/5281_2.png) [@Munch](https://boards.straightdope.com/u/Munch)
#### Post date: [June 29, 2011, 6:53pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/7 "2011-06-29T18:53:12Z")

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> [@Peter\_Morris](#):
>
> Has Google indexed the whole site yet? Last I heard, a Google search typically missed about half the posts compared to a similar board search.

Where did you hear that? I can’t imagine that being the case after about an hour of Google starting to index. A thread with 10 pages with the word “dominoes” on each one is going to come up with one hit on the SDMB, 10 hits on Google. In fact, googling “site:boards.straightdope.com dominoes” has 5390 hits, searching “dominoes” on the board comes up with 471 (bad example, since there’s a thread in the Game Room with thousands of posts with “dominoes” in the title). “Congresswoman” gets 282 on the board, 2620 on Google.

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### Author: ![GuanoLad](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/guanolad/32/42_2.png) [@GuanoLad](https://boards.straightdope.com/u/GuanoLad)
#### Post date: [June 29, 2011, 11:41pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/8 "2011-06-29T23:41:09Z")

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I thought there was an “exceptions” list in vBulletin, where you can add in some relevant three letter words it can search. I used to look after a board where some three letter acronyms were common (DVD for example), so included many of them as searchable.

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### Author: ![MsWhatsit](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@MsWhatsit](https://boards.straightdope.com/u/MsWhatsit)
#### Post date: [June 30, 2011, 3:24am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/9 "2011-06-30T03:24:29Z")

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Google seems to have indexed the SDMB pretty thoroughly at this point. I can’t think of specific examples, but there have been a few times lately that I had a vague memory of a really old thread and did a Google search based on a few keywords I remembered from the thread, and Google had it.

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### Author: ![TubaDiva](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tubadiva/32/507_2.png) [@TubaDiva](https://boards.straightdope.com/u/TubaDiva)
#### Post date: [June 30, 2011, 3:26am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/10 "2011-06-30T03:26:22Z")

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Yep, there is. “Words to be Included Despite Character Limit” What’s your pleasure?

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### Author: ![Guinastasia](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/guinastasia/32/5751_2.png) [@Guinastasia](https://boards.straightdope.com/u/Guinastasia)
#### Post date: [June 30, 2011, 3:28am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/11 "2011-06-30T03:28:29Z")

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Actually most boards I visit have a four letter search limit. So it’s not just the dope.

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### Author: ![Stoid](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/stoid/32/272_2.png) [@Stoid](https://boards.straightdope.com/u/Stoid)
#### Post date: [June 30, 2011, 4:05am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/12 "2011-06-30T04:05:51Z")

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> [@tubadiva](#):
>
> yep, there is. “words to be included despite character limit” what’s your pleasure?

dvd  
css  
fox  
nbc  
cbs  
abc  
msn  
cdc  
cms  
vip  
mp3  
cgi  
ram  
cpu  
php  
sql  
lcd  
jpg  
gif

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### Author: ![MsWhatsit](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@MsWhatsit](https://boards.straightdope.com/u/MsWhatsit)
#### Post date: [June 30, 2011, 4:09am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/13 "2011-06-30T04:09:38Z")

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Mac.

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### Author: ![TubaDiva](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tubadiva/32/507_2.png) [@TubaDiva](https://boards.straightdope.com/u/TubaDiva)
#### Post date: [June 30, 2011, 4:44am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/14 "2011-06-30T04:44:38Z")

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Okay, I’ve added these in. Let’s see what happens.

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### Author: ![hajario](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hajario/32/171_2.png) [@hajario](https://boards.straightdope.com/u/hajario)
#### Post date: [June 30, 2011, 4:54am UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/15 "2011-06-30T04:54:47Z")

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Very cool. Thanks for adding those.

Did you know that **Stoid** has only used “Fox” in a post three times and not since 2003? I would have never guessed that. 🙂

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### Author: ![johnpost](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@johnpost](https://boards.straightdope.com/u/johnpost)
#### Post date: [June 30, 2011, 6:25pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/16 "2011-06-30T18:25:29Z")

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companies that might be searched for might include

ibm  
3m

dozens of past and present government agencies (in the USA)

and then there are lots country abbreviations that have two or three letters, for example.

usa  
uk  
prc  
uae

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### Author: ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)
#### Post date: [June 30, 2011, 8:36pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/17 "2011-06-30T20:36:05Z")

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A few more:

OSX  
PS2  
PS3  
Wii

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### Author: ![johnpost](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@johnpost](https://boards.straightdope.com/u/johnpost)
#### Post date: [June 30, 2011, 9:10pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/18 "2011-06-30T21:10:46Z")

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also have been messages on

dos  
os2  
cbm  
c64

and chemicals like for example

co  
co2

and standards like

nec

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### Author: ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)
#### Post date: [June 30, 2011, 10:41pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/19 "2011-06-30T22:41:30Z")

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Really, I think it’d be easier to allow 3-letter words by default, and just expand the badwords list. Most of the problem with searching 3-letter words comes from a very small number of repeat offenders like “the”, “and”, and “for”.

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### Author: ![TubaDiva](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tubadiva/32/507_2.png) [@TubaDiva](https://boards.straightdope.com/u/TubaDiva)
#### Post date: [July 1, 2011, 9:29pm UTC](https://boards.straightdope.com/t/is-it-possible-to-change-the-4-letter-search-limit/587194/20 "2011-07-01T21:29:28Z")

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Chronos, that’s not how it works. You have a point but the code writers don’t always go along what seems to be the logical choice. YMMV, I guess.

I’ve added the latest suggestions. Thanks to everyone for their help.
