Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dong thanh » truong thanh
thanh phan » thanh pho, thanh san, thanh toan
doi chieu » doc hieu, doi chi, mot chieu
doan tuan » doan quan, doanh luan, doan quang
dung dong » dung cong, vung dong, dung trong
van quan » van ban
phan thi » pham thi, tran thi, phan tu

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 ((doan tuan) or (van quan)) dung dong thanh phan thi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((doan tuan) OR (van quan)) dung dong thanh phan thi.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((doan tuan) or (van quan)) dung dong thanh phan thi*.