Perhaps you should try some spelling variations:
hoc thiet » hoc thieu, hoc thuyet, hoc hien
thanh tra » thanh toan, thanh hoa
dong cong » duong cong, dung cong, dang cong
cong tan » cong tac, cong san, cong thanh
tan hanh » tan thanh, tang hanh, toan hanh
hanh bac » nhanh bac, thanh bac, hanh cac
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: ((hoc thiet) or (toc thieu)) tinh - thanh tra van dong cong tan hanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (toc thieu)) tinh - thanh tra van dong cong tan hanh bac*.