Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
thanh tra » thanh toan, thanh hoa
tuan tong » toan tong, thuan trong, toan thong
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, mot chieu
tra tuan » tran tuan, tra quan, tri tuan
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) xanh - thanh tra tuan tong ((cong tan) OR (cong san)) thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - thanh tra tuan tong ((cong tan) OR (cong san)) thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) xanh - thanh tra tuan tong ((cong tan) OR (cong san)) thanh cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - thanh tra tuan tong ((cong tan) OR (cong san)) thanh cau*.