Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh 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
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 hoi tai, nghien cuu mon hoc nganh hoa hoc xa ((hoi ca) or (hoi chuc)) nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoi tai, nghien cuu mon hoc nganh hoa hoc xa ((hoi ca) OR (hoi chuc)) nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tai, nghien cuu mon hoc nganh hoa hoc xa ((hoi ca) or (hoi chuc)) nhan dan*.