This is a very useful tool. I’ve known people doing research on the evolution of grammar, vocabulary, literary style, etc. who use only small subsets of the Project Gutenberg data. I'm sure they would appreciate being able to search the entire corpus.
The corpus-search functions those researchers use include wildcards, exact-phrase specification with quotation marks, proximity searches, and Boolean search strings. When you have a chance, you might want to add a list of the syntax formats that currently work. (I tried using * as a wildcard in a phrase surrounded by quotation marks, and it didn’t seem to work.)
One small improvement you could make would be to widen the “Search terms” field so that longer search strings are visible.
The corpus-search functions those researchers use include wildcards, exact-phrase specification with quotation marks, proximity searches, and Boolean search strings. When you have a chance, you might want to add a list of the syntax formats that currently work. (I tried using * as a wildcard in a phrase surrounded by quotation marks, and it didn’t seem to work.)
One small improvement you could make would be to widen the “Search terms” field so that longer search strings are visible.