Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
phan thanh » ban thanh, van thanh, quan thanh
hieu lang » chieu sang, hieu quang, nhieu tang
doi hieu » doi chieu, doc hieu, doi hien
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - canh doanh ((pham thanh) or (phan thanh)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - canh doanh ((pham thanh) OR (phan thanh)) cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - canh doanh ((pham thanh) or (phan thanh)) cong dan toan ban*.