I mean, an obvious first question I'd have would be why are there men's blue dresses? We're broad minded but not that broad minded.
However, you'll find that choosing "mens" (try it) shows you a large number of blue dress shirts. Not so wacky after all.
It may turn out that you only like Armani stuff, open brands and choose that. Then numbers are counts of matches if you were to add that term. So in our example, you'll see that Armani doesn't seem to make any blue dress pants (there's a zero by it and the link is disabled).
This has exposed a number of data quality issues like never before. This will improve over time and for buying complicated stuff like computers, electronics, and so on, this is gonna be the bomb.