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.