Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu xanh » tieu danh, chieu xanh, dieu hanh
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
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 tieu xanh - ((canh tranh) or (thanh trung)) va hang cong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((canh tranh) OR (thanh trung)) va hang cong dan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((canh tranh) or (thanh trung)) va hang cong dan ((toan cao) or (toan tap))*.