Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
doanh va » doan va, doanh tai, doanh cua
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
va dung » van dung, va duong, vat dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo tieu)) xanh - hanh doanh va dung cong dan ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo tieu)) xanh - hanh doanh va dung cong dan ((toan cao) OR (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo tieu)) xanh - hanh doanh va dung cong dan ((toan cao) OR (toan tap))*.