Right now on the left side there is a text saying
"Read how to refine by categories "
The issue is that it does the opposite of refining. For example if I search for "blowjob" I get 519.6K results. If I search for "blowjob amateur" I get 1.6M results - opposite of refinement.

Previously you had the categories on the left so I could put a checkmark on "amateur" and then type "blowjob" in search bar and all I would get is results that contain both of these words in either tags or video name. Right now there is no way of doing that.
Please either bring this back or add syntax sensitivity so that search like "amateur" "blowjob" would only bring up videos containing both of the words.