This is the 17203rd most frequent Korean word.
서야
"서야" means "only if" or "only when."
Here, '서야' implies a conditional meaning, highlighting that one can achieve the intended action (finding a solution) only by undertaking a certain preliminary action (trying to solve the problem).
문제 해결하기 위해서야 해결책을 찾을 수 있습니다.
Only by trying to solve the problem can a solution be found.
In this sentence, '서야' emphasizes the necessity of earnest effort in producing the result (success).
아주 열심히 노력해서야 성공을 얻을 수 있죠.
Only through working diligently can success be achieved.
This usage of '서야' puts focus on the essentiality of effective time management to accomplish multiple tasks.