Thanks for your platform to share ecchi mmd works.
When I use search, I find it lose something.
Then I use a python script to download all info of videos, then import all to a mongo database(no-sql database).
Then search word in every sentence of title and description, I find there are lots of things not appearing in search page.
I think maybe you first extract words from sentence, then match word.
but the extracted word ares not always right.
Do you do this just for performence?
Could you consider directly query in sentence(string) and a cache to avoid server load.
and consider using golang rather than php for performence.