I've had to painstakingly add my stuff manually after trying to upload my SNES collection through a .csv file failed, so I have to side with Warmsignal: that search bar can be a flipping nuisance when it wants to.
The first time I used it I though that after clicking the icon the bar would stay "on", and I remember typing my game, looking back at the screen and seeing I was typing sweet nothings. Perhaps that or something akin to it could be implemented? Warmsignal's idea of ticking the box "off" when clicking outside of it is sound, too.