Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
trong cuoc » trong cac
cuoc nganh » hoc nganh, cac nganh, chuc nganh
nganh nang » nganh nong, ganh nang, ngan hang
thu trong » thuc trong, thue trong, thuy trong
sach hoc » cach hoc, sach hoi, mach hoc
nang hoc » nang doc, nang luc, dong hoc
phan van » pham van, thanh van, luan van
tu sach » thu sach, su sach, te sach
hoi cau » hoi chu, hoc cau, hoa cau
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, 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: tu sach hoc tap, nghien thu trong cuoc nganh nang hoc xa ((hoi ca) or (hoi cau)) phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien thu trong cuoc nganh nang hoc xa ((hoi ca) OR (hoi cau)) phan van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien thu trong cuoc nganh nang hoc xa ((hoi ca) or (hoi cau)) phan van*.