Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cuoc nganh » hoc nganh, cac nganh, chuc nganh
nganh cong » nhanh chong, thanh cong
cong cuoc » song cuoc, trong cuoc, luong cuoc
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
phan van » pham van, thanh van, luan van
su sach » so sach, vu sach
hoi cac » hoc cac, voi cac, hoa cac
hoc xa » hoc ma
hoi ca » hoi cua, hoi cau, hoi va

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

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