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
dan thanh » dang thanh, danh thanh, ban thanh
cong dan » cong san, cong tan, huong dan
va hang » van hang, va lang, va hanh
va nang » van nang, da nang, cam nang

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 - ((canh tranh) or (thanh trung)) ((va hang) OR (va nang)) cong dan thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((canh tranh) OR (thanh trung)) ((va hang) OR (va nang)) cong dan thanh san.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((canh tranh) or (thanh trung)) ((va hang) OR (va nang)) cong dan thanh san".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((canh tranh) or (thanh trung)) ((va hang) OR (va nang)) cong dan thanh san*.