Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trong anh » truong anh, trong nganh, trong doanh
trinh va » trinh van, trinh vat, trinh ve
tuan cao » toan cao, quang cao, thuan cam
juan cao » quang cao, toan cao, quan cau
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: ((theo tieu) or (doi chieu)) xanh - hanh trinh va dung trong anh ((tuan cao) OR (juan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (doi chieu)) xanh - hanh trinh va dung trong anh ((tuan cao) OR (juan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (doi chieu)) xanh - hanh trinh va dung trong anh ((tuan cao) OR (juan cao))".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (doi chieu)) xanh - hanh trinh va dung trong anh ((tuan cao) OR (juan cao))*.