Perhaps you should try some spelling variations:
nganh nong » nganh cong
nang luat » nang suat, nganh luat, nang luc
tang luat » tang luan, nang suat, hang luan
cach hoc » cach thuc, cach thoi, dich hoc
nong hoc » dong hoc, nang hoc, nong thon
phan van » pham van, thanh van, luan van
su cach » su sach, tu cach, su cac
va phan » van phan, va phat, va phap
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cach hoc tap, nghien cuu ((nang luat) OR (tang luat)) nganh nong hoc xa hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach hoc tap, nghien cuu ((nang luat) OR (tang luat)) nganh nong hoc xa hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: su cach hoc tap, nghien cuu ((nang luat) OR (tang luat)) nganh nong hoc xa hoi va phan van*.