Perhaps you should try some spelling variations:
doi chiet » doi chi, doi viet, doi chinh
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
van cong » van dong, van phong, phan cong
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
cua van » cua ban, cua vat, cua dan

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 - canh tranh cua van cong tac ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chiet) OR (doi chieu)) tach - canh tranh cua van cong tac ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chiet) or (doi chieu)) tach - canh tranh cua van cong tac ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ((doi chiet) or (doi chieu)) tach - canh tranh cua van cong tac ((toan cau) OR (toan cao))*.