骑驴找驴

Traditional (Taiwan): 騎驢找驢

qílǘzhǎolǘ ㄑㄧˊ ㄌㄩˊ ㄓㄠˇ ㄌㄩˊ

    • lit. to search for the mule while riding on it (idiom)
    • fig. to look for what one already has

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
ride a donkey looking for a donkey
Meaning
Searching everywhere for something you already have. It also describes holding a job while looking for a better one.

Sources