Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
phuong ban » phuong bang, phuong bac, phong ban
phuong lan » phuong la, thuong lan, phuong linh
doi chieu » doc hieu, doi chi, ho chieu
trung tan » trung tuan, trung tran, trung tang
tan doan » tran doan, tap doan, van doan
than cau » toan cau, phan cau, than cap

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 sach - thanh trung tan doan ((phuong ban) or (phuong lan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung tan doan ((phuong ban) OR (phuong lan)) than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung tan doan ((phuong ban) or (phuong lan)) than cau*.