You can’t search for information that’s not in the record. If there’s nothing in the record for The Snake Has All The Lines that indicates that it’s autobiographical, it isn’t going to come up if you’re searching for autobiographies. Even the most well constructed search is going to miss records without good subject headings.
You’re looking for such a broad class of books that I think any database search is going to be rather frustrating. A woman’s autobiography will generally include her name as a subject heading, but usually will not have a heading that includes the word “women”. As far as I can tell based on my own library’s catalog, autobiographies usually have “biography” not “autobiography” in the subject heading. “Autobiography” appears in the headings for books about autobiographies. I’ve run a few searches myself just now, and haven’t been able to come up with a combination of terms that will produce the results you want.
I think a bibliography of/other book about women’s autobiographies, not a catalog or other database, would be a better starting place for you. If you can get ahold of such a book you can use it to help you find specific titles. Try a subject search on “autobiography AND women”, or “autobiography AND bibliography AND women” and see what comes up. If you have access to a database of journal articles you may also try searching there to see if you can find something about women’s autobiographies that can provide you with some leads.
I can give you a couple of relevant looking titles that I found in my own library system’s catalog, although this is outside my area so I’m not familiar with the actual books.
Notable women in American history : a guide to recommended biographies and autobiographies / Lynda G. Adamson. Westport, Conn. : Greenwood Press, c1999
From girl to woman : American women’s coming-of-age narratives / by Christy Rishoi. Albany : State University of New York Press, c2003
Maverick autobiographies : women writers and the American West, 1900-1940 / Cathryn Halverson. Madison : University of Wisconsin Press, c2004
Revelations of self : American women in autobiography / Lois J. Fowler and David H. Fowler, editors. Albany : State University of New York Press, c1990
The tradition of women’s autobiography from antiquity to the present / Estelle C. Jelinek. Boston : Twayne Publishers, c1986