Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh phan
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
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: te sach hoc tap, nghien cuu dong hoc nganh khoa hoc xa hoi va ((nhan dan) or (thanh van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu dong hoc nganh khoa hoc xa hoi va ((nhan dan) OR (thanh van)).
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu dong hoc nganh khoa hoc xa hoi va ((nhan dan) or (thanh van))*.