Perhaps you should try some spelling variations:
tranh van » tran van, trinh van, thanh van
hang cong » dang cong, hang nong, bang cong
theo chu » theo chieu, cho chu, chao chu
van hang » van khang, van hoang, van thang
cong dan » cong san, cong tan, huong dan
dan hang » ban hang, dat hang, dai hang
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (theo tieu)) xanh - canh tranh van hang cong dan hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (theo tieu)) xanh - canh tranh van hang cong dan hang dau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (theo tieu)) xanh - canh tranh van hang cong dan hang dau*.