Perhaps you should try some spelling variations:
cdoanh van » doan van, doanh va, doanh ban
hieu cach » hieu cac, chieu sach, hieu ca
doanh van » doan van, doanh va, doanh ban
hoc hieu » hoc thieu, hoc hien, doc hieu
cua tong » cua cong, cua dong, cua song
cua nong » cua cong, cuu nong, cua dong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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 - ((cdoanh van) or (doanh van)) ((cua tong) or (cua nong)) cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - ((cdoanh van) OR (doanh van)) ((cua tong) OR (cua nong)) cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - ((cdoanh van) or (doanh van)) ((cua tong) or (cua nong)) cong tan toan cau*.