Perhaps you should try some spelling variations:
nganh nong » nganh cong
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
sach hoc » cach hoc, sach hoi, mach hoc
nong hoc » dong hoc, nang hoc, nong thon
phan van » pham van, luan van, tran van
tu sach » thu sach, su sach, te sach
son hoc » mon hoc, so hoc, son hoa
hoi chu » hoi chuc
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: tu sach hoc tap, nhiem huu son hoc nganh nong hoc xa hoi chu ((phan van) OR (thanh van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nhiem huu son hoc nganh nong hoc xa hoi chu ((phan van) OR (thanh van))".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nhiem huu son hoc nganh nong hoc xa hoi chu ((phan van) OR (thanh van))*.