Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung tan » trung tuan, trung tran, trung tang
dung cong » dung trong
tran tuan » tran xuan, tran quang, tran thanh
tan dung » tran dung, tin dung, van dung
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren

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

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