I understand what you mean. For instance the "piss drinking" code covers both girl drinks and guy drinks. You only have very broad uniform and cosplay categories for instance not "bride" or "bunny suit".
As a non-Japanese speaker, I've found value in using Google translate to identify search terms - either directly from English or isolated from known Japanese titles - and then input them back as Japanese search terms in your favorite database.
Once again I prefer JavDB for native Japanese input and series links.