Perhaps you should try some spelling variations:
nganh nong » nganh cong
luc nganh » luc ngan, chuc nganh, luat nganh
ban thanh » ban hanh, ban hang
thanh van » thanh san, thanh toan, thanh phan
cuu nang » chuc nang, cam nang, cuu van
nong hoc » dong hoc, nang hoc, nong thon
tu sach » thu sach, su sach, te sach
vu sach » vu bach, su sach, vu khach
hai ban » hai bang, hai ba, tai ban
ma hai » ta hai, va hai, xa hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (vu sach)) hoc tap, nghien cuu nang luc nganh nong hoc ma hai ban thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) hoc tap, nghien cuu nang luc nganh nong hoc ma hai ban thanh van.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) hoc tap, nghien cuu nang luc nganh nong hoc ma hai ban thanh van*.