Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung tuan » trung thanh, trung tam, tran tuan
tong thanh » thong thanh, trong thanh, dong thanh
thanh van » thanh san, thanh toan, thanh phan
tuan han » tuan hoan, luan han, tran han

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 (chieu tinh)) - thanh trung tuan han tong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu tinh)) - thanh trung tuan han tong thanh van ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu tinh)) - thanh trung tuan han tong thanh van ban*.