A clean hand wants no washing.
More Vietnamese Proverbs:
People say that time goes by; time says that the people go by.Vietnamese
Between two stools, you fall to the ground.
Vietnamese
He wanted to cure a healthy pig and ended up with a sick one.
Vietnamese
The mouth prays to Buddha, but the heart is full of evil.
Vietnamese
The fat buffalo will attract the lean buffalo.
Vietnamese
The bird that escapes from its cage never wants to come back.
Vietnamese