pick over something
pick through something

A full order was picked up part way through the season.

For the next half hour they picked their way through the house, moving from one room to another.

She turned and began to pick her way back to the house through the darkness.

But you have to pick through a big agenda to find many others.

Picking his way through the dark, the young man had reached the last one on the right.

It's going to take quite some time to pick through that match.

Besides, he needed both hands to pick his way through this place without a fall.

The debris had been picked through too much to tell him anything.

"Now consumers have to pick through all the results that get in front of their search."

His job is to go in after everything of "value" has been removed, and pick through the rest.