This is the 2550th most frequent Korean word.
발견하지
"발견하지" means "do not discover" or "do not find" depending on the context.
This usage of 발견하지 refers to the literal act of discovering or finding something.
그는 새로운 별을 발견하지 못했어요.
He didn't discover a new star.
Here, 발견하지 is used metaphorically to refer to finding a solution or answer.
그녀는 문제의 해답을 아직 발견하지 못했습니다.
She still has not discovered the solution to the problem.
In this sentence, 발견하지 pertains to uncovering or realizing abstract or symbolic meanings.