Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu cach » hieu cac, chieu sach, hieu ca
doanh qua » doanh quan, doanh cua, danh qua
song cong » cong cong, tong cong, song hong
vang toan » van toan, dang toan, quang toan
hoc hieu » hoc thieu, hoc hien, doc hieu
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 - hanh doanh qua ((song cong) or (trong cong)) vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - hanh doanh qua ((song cong) OR (trong cong)) vang toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - hanh doanh qua ((song cong) or (trong cong)) vang toan ban*.