는 찾았나

Did you find [the person or thing being discussed]?

→ 는
phrase Rare #20,199
Did you find [the person or thing being discussed]? The particle 는 marks the topic, and 찾았나 is a casual question form of 찾다 (to find). The subject or object is understood from context.
KO: 룸메이트는 찾았나?
EN: Did you find your roommate?

여자애는 찾았나?

Did you find the girl?

— 레옹 (1994)

목격자는 찾았나?

Did you find any witnesses?

— 곡성 (2016)