Perhaps you should try some spelling variations:
nganh nong » nganh cong
nhung cong » dung cong, thong cong, hang cong
tieu sach » chieu sach, dien sach, te sach
cua nhung » va nhung
nong cua » cong cua, dong cua, song cua
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, tran bai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - nganh nong cua nhung cong tan ((tran ban) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - nganh nong cua nhung cong tan ((tran ban) OR (toan ban))*".