Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
doi hieu » doi chieu, doc hieu, doi hien
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong ty
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - anh tang cua nhung ((((cong dan) or (cong tan))) or (cong thanh)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - anh tang cua nhung ((((cong dan) OR (cong tan))) OR (cong thanh)) phan cau.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - anh tang cua nhung ((((cong dan) or (cong tan))) or (cong thanh)) phan cau*.