Perhaps you should try some spelling variations:
trung tuan » trung thanh, tran tuan, truong thanh
cuong dung » tuong duong, ung dung, thong dung
hieu lang » chieu sang, hieu quang, nhieu tang
cong dung » cong dong, cong luong, thong dung
thanh cac » hanh cac, thanh bac, thanh ca
ho hieu » ho chieu, hoi hieu, nho hieu

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 - thanh ((trung tuan) or (trung tam)) phong ((cong dung) OR (cuong dung)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh ((trung tuan) OR (trung tam)) phong ((cong dung) OR (cuong dung)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh ((trung tuan) or (trung tam)) phong ((cong dung) OR (cuong dung)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh ((trung tuan) or (trung tam)) phong ((cong dung) OR (cuong dung)) thanh cac*.