Remember that "Less is More", the less boxes you check, the less keywords you enter, the more stories you will find.
For fields such as Title, Author, Fandom, Characters, Pairings, Summaries, Spoilers, etc., entering a partial word or name will result in more results. Keep in mind that authors may have used abbreviations or initials for characters or pairings.
If you can't find what you're looking for with this form, try Google's
site search to search the text of all the stories archived here. Just
enter your search terms and 'site:http://glassonion.populli.org/' (without
quotes) in the search box. For example, enter this:
in the search box and Google will find all stories at this archive with the word "flowers" in it.