Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung tuan » trung thanh, trung tam, tran tuan
hieu lang » chieu sang, hieu quang, nhieu tang
trung cap » truong cao, trung tam
tong cong » trong cong, cong cong, dung cong
than cau » toan cau, phan cau, than cap
cong tu » cong ty, cong cu, dong tu
tu than » tu thanh, tu nhan, nu than

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

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