Find a game is funny

I try to find various games and the search just gives me all the games. Is it that there really are not open games in that system? For example, I try to find 5th edition D&D and it tells me there are no games, then just shows me all the games. The filter, to me, does not seem very intuitive.

It may be the filter is misbehaving. I'll take a look into it.