Using multiple genres in advanced title search, returns totally wrong results

Hello,

I tried to use this link: https://www.imdb.com/search/title/?genres=drama,romance,mystery

But the results I am seeing are movies containing only 1 of these 3 genres. To my understanding, this should return titles containing all 3 genres at the same time?

Do I miss something here?

Thanks in advance.

EDIT: Nevermind. Apparently the results are correct. The movies have more than the 3 genres that are apparent in the top of their webpage, one has to scroll down a bit to see all of them. So this is not an issue.