Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
luat dong » luat cong, luat bong, luan dong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh trinh luat dong ((cong dan) or (cong tan)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh trinh luat dong ((cong dan) OR (cong tan)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh trinh luat dong ((cong dan) or (cong tan)) ((toan cau) or (toan ban))*.