Yeah vendor search needs work. It's a great idea but it's very buggy. I've noticed if you search from high to low, then search low to high you get different results. Not always but rather often. Like if you search high to low often some of the lower end stuff gets cut off and vice versa. It does make you wonder why the out of game search is so much better than ours. But I don't think that search covers the whole game, just select areas like Luna.