Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
hieu lang » chieu sang, hieu quang, nhieu tang
chinh cua » chinh ca, chinh sua, hinh cua
cua chong » cua cong, cua chung, cua khong
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong ty
toan cau » toan cao, toan ban, toan tap
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 chinh cua chong ((cong thanh) or (cong tan)) ((toan cau) or (tran chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh chinh cua chong ((cong thanh) OR (cong tan)) ((toan cau) OR (tran chau)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh chinh cua chong ((cong thanh) or (cong tan)) ((toan cau) or (tran chau))*.