Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh hoan » trinh han, trinh hoa, trinh toan
hoan hang » hoan hoang, hoat hang, hoan thanh
ho chinh » hoc chinh, cho chinh, hoa chinh
cong dan » cong san, cong tan, cong dong
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chinh sach - canh trinh hoan hang ((cong dan) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - canh trinh hoan hang ((cong dan) OR (huong dan)) than cau.
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - canh trinh hoan hang ((cong dan) or (huong dan)) than cau*.