Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
doi chieu » doc hieu, doi chi, ho chieu
hang nong » thang long, han tong
dung cac » luong cac, dung cho, dung tai
cac hang » cac dang, cac bang, cac lang
nong dan » cong dan, nong san, nguong dan
than cau » toan cau, phan cau, than cap
phan cac » nhan cach, phan dau, phan lap

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 dung cac hang nong dan ((than cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh dung cac hang nong dan ((than cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh dung cac hang nong dan ((than cau) or (phan cac))*.