Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
tran dung » tran dang, tran hung, tran quang
trong van » trong cac
phu hieu » phu nhieu, nhu hieu, thuc hieu
dan dung » van dung, tin dung, ap dung
van phan » van phong, van thanh, luan phan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: phu hieu lang - thanh tung ((dan dung) or (tran dung)) trong van phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: phu hieu lang - thanh tung ((dan dung) OR (tran dung)) trong van phan lap.
• Adding a wildcard symbol may retrieve word variants: phu hieu lang - thanh tung ((dan dung) or (tran dung)) trong van phan lap*.