Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
hieu sang » chieu sang, hieu lang, hieu quang
doc hieu » toc thieu, hoc thieu, hoc hien
va duong » van duong, va tuong, va huong
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
va dung » van dung, vat dung, va ung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sang - chinh doanh ((va dung) OR (va duong)) cong dan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - chinh doanh ((va dung) OR (va duong)) cong dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu sang - chinh doanh ((va dung) OR (va duong)) cong dan ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - chinh doanh ((va dung) OR (va duong)) cong dan ((toan cau) or (toan tap))*.