Search Bar Not Very Great (Not working sometimes)

This seems to happen either after I've downloaded something, or after I've specified a tag type under Models when searching. I can find what I'm looking for, download it and then go "back" in my browser (Google Chrome) and when I try to type something in the search bar and press enter (or the magnifying glass) nothing happens.

I've also noticed that when I'm searching for something like a keyword. Say I want to search for models with "hands" in the name or description, if I type "hands" and press enter, it will forcibly go right to the first result rather than giving me a list of results.