Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh van » trinh han, trinh quan, trinh toan
van nhung » van nhuong, va nhung, van hung
cong dan » huong dan, cong dong, cong tac
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cao » toan ban, toan tap
o cuu » ho cuu, so cuu, _ cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: o cuu tinh - hanh trinh van nhung ((cong dan) or (((cong tan) or (cong san)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: o cuu tinh - hanh trinh van nhung ((cong dan) OR (((cong tan) OR (cong san)))) toan cao.
• Adding a wildcard symbol may retrieve word variants: o cuu tinh - hanh trinh van nhung ((cong dan) or (((cong tan) or (cong san)))) toan cao*.