Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh thanh » nhanh thanh, thanh toan, thanh phan
hieu quang » thieu quang, hieu quan, hieu qua
cong thanh » dong thanh, cong trinh, cong tan
hieu lang » chieu sang, nhieu tang, hieu van
trung cua » truong cua, trung tuan, trung cap
hang cong » dang cong, hang nong, bang cong
thanh cap » thanh lap, hanh cap, than cap
cua hang » cua dang, cua nhung, cua cong

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

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