Since you are still using a beta addon it's not built in yet. The toggle for it is there, but it's completely nonfunctional. Sorry, until now I wasn't happy with any try to add an exact name search.Quote from
exact search is on, but i searched for light leather and it also found light leather quivers.
It's no given functionality in AH and it needs a lot of hacking .. I had some good results which turn out ugly and buggy later. I've taken a look at other addons which have it and they were bloated like hell only to make this feature work.
btw: This is also the reason why I didn't release Fence official on WoWI yet. It's still not in a release state, so you have to take it as is.