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
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
nhan tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
hoi tai » hoc tai, hoi trac
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: su sach hoi tai, nghien cuu cong hoc nganh hoa hoc xa ((hoi ca) or (hoi chuc)) nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoi tai, nghien cuu cong hoc nganh hoa hoc xa ((hoi ca) OR (hoi chuc)) nhan tai.
• Adding a wildcard symbol may retrieve word variants: su sach hoi tai, nghien cuu cong hoc nganh hoa hoc xa ((hoi ca) or (hoi chuc)) nhan tai*.