、。
Even after searching until my legs were stiff, I couldn't find anything I liked.
Literal
Leg [obj-を] stick-do [and-て] search-[even-ても], to-liking [nominalizer-もの] [subject-が] didn't-exist.
足を棒にする is a fixed idiom literally 'to make one's legs into sticks,' meaning 'to walk until one's legs are exhausted, to search far and wide.' The ~ても form ('even if / even though') chains this exhausting search to a negative result. 気に入る ('to like, to take a fancy to') is itself a fixed verb-phrase collocation: 気 ('mind') + に入る ('enter'), 'to enter one's mind favorably.' The whole sentence is written in polite past negative.