Perhaps you should try some spelling variations:
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tranh vat » trinh vat, tranh va, tranh van
hang cong » dang cong, hang nong, bang cong
vat hang » van hang, dat hang, va hang
cong tac » cong ty
tac chan » tac chuan, tac can, tac chon
chan ban » can ban, chat ban, chan nan

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

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