Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
su sach » so sach, vu sach
mo hoc » mon hoc, co hoc
hoc xa » hoc ma

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien cuu mo hoc nganh khoa hoc xa hoi ((ca nhan) OR (van nhan)) van~.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien cuu mo hoc nganh khoa hoc xa hoi ((ca nhan) or (van nhan)) van*.