Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu quang » thieu quang, hieu quan, hieu qua
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu van, biet lang
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, trong cong, dung cong
cong san » cong tac
san khan » san khau, san khac, san phan
khan cap » khan ap, than cap, khoan cam

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) OR (hieu quang)))) - thanh trung cua cong cong san khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhieu tang) or (((hieu lang) OR (hieu quang)))) - thanh trung cua cong cong san khan cap~".
• Adding a wildcard symbol may retrieve word variants: ho ((nhieu tang) or (((hieu lang) OR (hieu quang)))) - thanh trung cua cong cong san khan cap*.