Wiktionary
vb. (context transitive English) To select something one desires from a group or list.
Usage examples of "pick through".
I don't care how determined you are, you aren't going to pick through thousands of feet of rock.
I tried to keep looking around at different dancers, at the deejay, at anything but the man to the vampire's left, the man whose mind I was trying to pick through.
Nearing the station, the rebel fighters, pick through a screen of TIE Fighters and head for the Death Star's surface.
Only when that was all secured as it should be, did they pick through the other contents of the leather satchel beside the squad car and come up with file copies of Lieutenant Pulham's fingerprints.
She worked the short end of the pick through the hole, pulled upward, and gave a little crow of delight when the tool yanked a furrow nearly eighteen inches long through the rotted, rusted metal.
David Ettinger's last conscious thought before the man in the back of the Chevrolet twisted his neck and shoved an ice pick through his ear into his brain was that he remembered locking the car when he parked it.