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
nong cong » cong cong, tong cong, nang cong
van thanh » ban thanh, van tuan
cua nong » cua cong, cuu nong, cua dong
dan than » dan chan, ban than, van than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhieu tang) OR (hieu lang)) - thanh trung cua nong cong ((dan than) OR (van thanh)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) or (hieu lang)) - thanh trung cua nong cong ((dan than) or (van thanh)) cau*.