Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, trong cong, dung cong
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban

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

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