Had to implement a search feature for a client so I did and told him to check it out (it was a LIKE SQL statement)

He tested it out by typing in iPhone and Phone (there was an item called iphone in the database) and he was amazed about the fact it worked for some reason.

A real answer from him:
"it's working.. how is it working?
each item is tagged to multiple keywords without the user doing anything"

I said it's just a text search but I guess I should've said I'm using an advanced AI to extract all possible terms related to the item title.