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

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho nhieu tang - thanh tung cao thong ((cong dan) OR (cong san)) ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho nhieu tang - thanh tung cao thong ((cong dan) OR (cong san)) ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho nhieu tang - thanh tung cao thong ((cong dan) OR (cong san)) ((than cau) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: nho nhieu tang - thanh tung cao thong ((cong dan) OR (cong san)) ((than cau) or (toan cau))*.