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
tu sach » su sach, te sach, tu cach
ca luan » cu luan, ca lua, ca quan
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 luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) hoc tap, nghien thu cong cuoc nganh nong hoc xa hoi ca luan 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 luan van*.