comb (something) for (someone or something)
To look through an area in an attempt to find someone or something in particular. We combed the wreckage for survivors but still haven't found any. I've been combing the house for my glasses—have you seen them?
comb something for someone or something
Fig. to look all over or all through something for a particular person or thing. The police combed the entire neighborhood for the criminals. I combed the entire house for the missing paper.