Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
hoat bao » hoa bao, thuat bao, hoang bao
hoai bao » hoa bao, hoai bac, hoang bao
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh trung va hang ((cong dan) or (cong tac)) ((hoat bao) OR (hoai bao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung va hang ((cong dan) OR (cong tac)) ((hoat bao) OR (hoai bao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung va hang ((cong dan) or (cong tac)) ((hoat bao) OR (hoai bao))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung va hang ((cong dan) or (cong tac)) ((hoat bao) OR (hoai bao))*.