Perhaps you should try some spelling variations:
doi chiet » doi chi, doi viet, doi chinh
doi chieu » doc hieu, doi chi, mot chieu
quan tran » quang tran, quan tren, xuan tran
tran hung » tran hong, tran quang, tran hoang
hung cong » nhung cong, hung cuong, phung cong
ban quan » van quan
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((doi chiet) or (doi chieu)) tach - ban quan tran hung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chiet) OR (doi chieu)) tach - ban quan tran hung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chiet) or (doi chieu)) tach - ban quan tran hung cong tac toan cau*.