In Full text Search (FTS) queries for phrases are not indexed but resolved, post-index using the following line.

return strcasestr( haystack.c_str(), phrase.c_str() ) != NULL;

This includes single word searches using "bob" "jim" to ensure an AND relationship. If we could change the above to support regex matches (it's a string to string match so not hard) then we can support wildcards, proximity and all sorts of other big boy free text search features.

I'd offer a patch but I doubt it would be up the standards required and unless I know it's going in it's not worth the effort.