Perhaps you should try some spelling variations:
thanh tra » thanh toan, thanh hoa
van trong » van truong, vang trong, ban trong
san khanh » van khanh, dan khanh, san thanh
khanh cap » hanh cap, khan cap, hanh cac
doc hieu » hoc thieu, hoc hien
cong san » cong tac
tra van » tran van, ta van, trang van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) manh - thanh tra van trong cong san khanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) manh - thanh tra van trong cong san khanh cap*.