Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
viet chung » viet hung, viet phuong, viet thuong
chung cong » nhung cong, chong cong, phung cong
tinh binh » ninh binh, tinh ninh
binh viet » ninh viet, dinh viet, kinh viet
cong ban » cong bang, cong san, cong tan
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu sach - tinh binh viet chung cong ban ((phap phat) or (phap luat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu sach - tinh binh viet chung cong ban ((phap phat) OR (phap luat))*.