Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trinh va » trinh van, trinh vat, trinh ve
cong tac » cong ty
phan cau » phan dau, phan cac, phan tu
cho chu » cho thue
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (cho chu)) xanh - hanh trinh va dung ((cong san) OR (cong tac)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (cho chu)) xanh - hanh trinh va dung ((cong san) OR (cong tac)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (cho chu)) xanh - hanh trinh va dung ((cong san) OR (cong tac)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (cho chu)) xanh - hanh trinh va dung ((cong san) OR (cong tac)) phan cau*.