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
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
te sach » toc sach
va nhan » van nhan, ca nhan, va nha
va phan » van phan, va phat, va phap
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 cong hoc nganh khoa hoc xa hoi ((va nhan) or (va phan)) va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu cong hoc nganh khoa hoc xa hoi ((va nhan) OR (va phan)) va.
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu cong hoc nganh khoa hoc xa hoi ((va nhan) or (va phan)) va*.