Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
cao thong » cao thuong, tao thong, cao phong
nho hieu » nha hieu, nho sieu, nhu hieu
tung cao » nung cao, truong cao, trung cap
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » toan cau, phan cau, than cap
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - thanh tung cao thong ((cong dan) or (cong san)) ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - thanh tung cao thong ((cong dan) OR (cong san)) ((than cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - thanh tung cao thong ((cong dan) or (cong san)) ((than cau) or (toan tap))*.