Perhaps you should try some spelling variations:
hoc chinh » hoan chinh, hoc sinh, hoc kinh
hang cong » dang cong, hang nong, bang cong
san chang » ban hang, dan chan, van khang
chang ban » hang ban, chang ran, chang nang
tranh va » tranh van, trang va, trinh va
cong san » cong tac
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: hoc chinh sach - canh tranh va hang cong san chang ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - canh tranh va hang cong san chang ban*.