Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung chua » trung cua, trong chuan, trung ha
tieu sang » tieu dung, tiem nang, tinh sang
chua xang » chua nang, chuc nang, chu bang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan ban » van ban

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

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