Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
canh doanh » hanh doanh, doanh doanh, kinh doanh
hieu cach » hieu cac, chieu sach, hieu ca
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: hoc hieu cach - ((canh doanh) or (chinh doanh)) cua thong ((cong tan) OR (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - ((canh doanh) OR (chinh doanh)) cua thong ((cong tan) OR (cong tac)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu cach - ((canh doanh) or (chinh doanh)) cua thong ((cong tan) OR (cong tac)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - ((canh doanh) or (chinh doanh)) cua thong ((cong tan) OR (cong tac)) toan ban*.