Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
sach hoi » sach doi, sach moi, cach thoi
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
hoi tai » hoc tai, hoi trac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi cua » hoi chuc
hoc xa » hoc ma
hoi ca » hoi cac, 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: tu sach hoi tai, nghien cuu mon hoc nhanh hoa hoc xa ((hoi ca) or (hoi cua)) nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoi tai, nghien cuu mon hoc nhanh hoa hoc xa ((hoi ca) OR (hoi cua)) nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tai, nghien cuu mon hoc nhanh hoa hoc xa ((hoi ca) or (hoi cua)) nhan dan*.