Perhaps you should try some spelling variations:
nganh nong » nganh cong
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
nong hoc » dong hoc, nang hoc, nong thon
nhan van » nhan dan, phan van, nha van
te sach » toc sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
nhan va » nhan tai, nhan dan, nhan tao
ma hoc » va hoc, ma hoa, mo hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach hoc tap, nghien cuu mon hoc nganh nong hoc ma hoc dan ((nhan van) or (nhan va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu mon hoc nganh nong hoc ma hoc dan ((nhan van) OR (nhan va)).
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu mon hoc nganh nong hoc ma hoc dan ((nhan van) or (nhan va))*.