Perhaps you should try some spelling variations:
tranh vat » trinh vat, tranh va, tranh van
hang cong » dang cong, hang nong, bang cong
san chang » ban hang, dan chan, van khang
chang ban » hang ban, chang ran, chang nang
do chinh » hoc chinh, mo hinh, do dinh
vat hang » van hang, dat hang, va hang
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: do chinh sach - canh tranh vat hang cong san chang ban~.
• Adding a wildcard symbol may retrieve word variants: do chinh sach - canh tranh vat hang cong san chang ban*.