Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh van » trinh han, trinh quan, trinh toan
van nhung » van nhuong, va nhung, van hung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
tru » truc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - canh trinh van nhung ((cong dan) or (cong san)) ca tru~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh trinh van nhung ((cong dan) OR (cong san)) ca tru.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh trinh van nhung ((cong dan) or (cong san)) ca tru*.