Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
sach doi » sach hoi, sach moi, sach dao
khoa hoc » hoa hoc
te sach » toc sach
doi tap » doi tac, doi dap, doi tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, va phan, va nha
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 doi tap, nghien cuu mon hoc nganh khoa hoc xa hoi ((va nhan) OR (ca nhan)) dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach doi tap, nghien cuu mon hoc nganh khoa hoc xa hoi ((va nhan) OR (ca nhan)) dan".
• Adding a wildcard symbol may retrieve word variants: te sach doi tap, nghien cuu mon hoc nganh khoa hoc xa hoi ((va nhan) OR (ca nhan)) dan*.