Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
thuoc sach » hoc sach, nuoc sach, thuat sach
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
sach hoi » sach doi, sach moi, cach thoi
hoi tap » hoi dap, hoc tap, hoi tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
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.

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