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, nhan va, phan van
te sach » toc sach
hoi van » hoi va, hoi dan, hai van
van tai » von tai, van tuan
mo hoc » mon hoc, co hoc
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: te sach hoc tap, nghien cuu mo hoc nganh nong hoc xa hoi van ((nhan van) or (van tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu mo hoc nganh nong hoc xa hoi van ((nhan van) OR (van tai)).
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu mo hoc nganh nong hoc xa hoi van ((nhan van) or (van tai))*.