Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
tuan hoang » quan hoang, tran hoang, xuan hoang
doi chieu » doc hieu, doi chi, ho chieu
cong tac » cong ty
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - thanh trung tuan hoang ((cong san) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trung tuan hoang ((cong san) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung tuan hoang ((cong san) or (cong tac)) toan cao*.