search out
To hunt, seek, or try to discover someone or something. A noun or pronoun can be used between "search" and "out." We've been searching out locations to shoot our new film. I have to search Sarah out to get the administrator password to the computer.
search someone or something out
to seek and find someone or something. I will search Fred out. I know he's here somewhere. We have to search out the key to the safe-deposit box.
search out
v. To seek and find someone or something: I managed to search out an old jazz album. She lost his address, but she was able to search him out using the Internet.