Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
nganh nong » nganh cong
hanh tang » hanh trang, anh tang, hanh mang
cua nganh » cua ngan, chuc nganh, cua nhan
tang cua » mang cua, hang cua, tang luan
nong dan » cong dan, nong san, nguong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 (chiet tach)) - hanh tang cua nganh nong dan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chiet tach)) - hanh tang cua nganh nong dan than ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chiet tach)) - hanh tang cua nganh nong dan than ban*.