That's the thing. You are not looking at search results, when looking at the browse section. I doubt that all those unwanted games show up, when looking for a search term.
Using browse for random games that are unspecific, yet "popular" is not reliable. There are complain threads about the ranking being unstable, unfair and or wrong. And other complain threads about tags being used incorrectly. And of course, complains about things not showing up in actual search.