Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
theo chieu » theo tieu, ho chieu, thi chieu
trinh van » trinh han, trinh quan, trinh toan
van nhung » van nhuong, va nhung, van hung
theo chu » cho chu, chao chu, theo yeu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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

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