Perhaps you should try some spelling variations:
hoc thieu » toc thieu
thanh tra » thanh toan, thanh hoa
van nhung » van nhuong, va nhung, van hung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cao » toan cao, thai cao, than cap
tra van » tran van, ta van, trang van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - thanh tra van nhung ((cong dan) OR (cong tan)) than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) xanh - thanh tra van nhung ((cong dan) OR (cong tan)) than cao~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - thanh tra van nhung ((cong dan) OR (cong tan)) than cao*.