Can you give us some examples?

I've noticed the same issue. I think it's only happening at around 0:00UTC (not really sure how long it lasts, but it's more than a few minutes). I thought the search was struggling with non-Roman letters/script, but I also noticed issues when searching in English for English titles.

Having issues right now (not quite 0:00UTC, but it's close). I search for something, what I'm looking for doesn't come up. I search the same title or keyword/s a few seconds later and a different result appears, still not what I'm looking for. Bit of hit and miss. Happens with a keyword search for anything (movie/TV/person/production company/network/keyword, etc).

I think I understand what you guys are talking about now. I've search for some very famous people and movie, and the search returned zero results. Or very few results that have little to do with the search. I had to refresh the search page a few times before it actually went through as it should.

Seems to be ok now. Whatever the issue is, it doesn't seem to last long.