Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cuoc nganh » hoc nganh, cac nganh, chuc nganh
nganh nong » nganh cong
cong cuoc » song cuoc, trong cuoc, luong cuoc
thu sach » thuat sach, thuoc sach, thu hoach
nong hoc » dong hoc, nang hoc, nong thon
phan van » pham van, thanh van, luan van
tu sach » su sach, te sach, tu cach
ca phan » cac phan, cao phan, cap phan
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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