Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
sach doi » sach hoi, sach moi, sach dao
tu sach » thu sach, su sach, te 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, ca nhan, va phan
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: tu sach doi tap, nghien cuu mon hoc nganh khong hoc xa hoi ((va nhan) OR (va phat)) dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach doi tap, nghien cuu mon hoc nganh khong hoc xa hoi ((va nhan) OR (va phat)) dan".
• Adding a wildcard symbol may retrieve word variants: tu sach doi tap, nghien cuu mon hoc nganh khong hoc xa hoi ((va nhan) OR (va phat)) dan*.