Perhaps you should try some spelling variations:
nganh nong » nganh cong
thanh van » thanh san, thanh toan, thanh phan
hoc nganh » hoc nhanh
van thanh » ban thanh, van tuan
thu sach » thuat sach, thuoc sach, thu hoach
nong hoc » dong hoc, nang hoc, nong thon
hai van » thai van, ha van, hai tan
tu sach » su sach, te sach, tu cach
cuu mon » cuu mo, cuu mot, cuu cong
hoi tap » hoi dap, hoc tap, hoi tai
mon hoc » toan hoc, dong hoc
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 (thu sach)) hoi tap, nghien cuu mon hoc nganh nong hoc xa hai van thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) hoi tap, nghien cuu mon hoc nganh nong hoc xa hai van thanh van".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) hoi tap, nghien cuu mon hoc nganh nong hoc xa hai van thanh van*.