Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan dung » tuan duong, tran dung, tan dung
trong tan » trong quan, trong cac, trong ca
tan ran » tan tran, tan van, tan san
ran cau » van cau, ban cau, can cau

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 sach) or (trieu tinh)) - thanh trung tuan dung trong tan ran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (trieu tinh)) - thanh trung tuan dung trong tan ran cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (trieu tinh)) - thanh trung tuan dung trong tan ran cau*.