Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
bien soan » bien so
thu tich » chu tich, chu thich, thue tinh
tich hoc » tinh hoc, dich hoc, tich hop
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
hoi van » hoi va, hoi dan, hai van
ban san » ban soan, ban dan, ban can
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu tich hoc tap, nghien cuu dong hoc nganh hoa hoc xa hoi van ((ban san) or (bien soan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tich hoc tap, nghien cuu dong hoc nganh hoa hoc xa hoi van ((ban san) OR (bien soan)).
• Adding a wildcard symbol may retrieve word variants: thu tich hoc tap, nghien cuu dong hoc nganh hoa hoc xa hoi van ((ban san) or (bien soan))*.