Perhaps you should try some spelling variations:
thanh trung » thanh tung
hang cong » dang cong, hang nong, bang cong
chi xanh » chi anh, chi danh, chi hanh
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
doi chi » doi khi
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: doi chi xanh - ((canh tranh) or (thanh trung)) va hang cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((canh tranh) OR (thanh trung)) va hang cong dan phan tu*.