Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
tu sach » thu sach, su sach, te sach
hoi tap » hoc tap, hoi tai, hai tap
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((hoi tap) OR (hoi dap)), nghien cuu mon hoc nganh khoa hoc xa hoi ca nhan va~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((hoi tap) OR (hoi dap)), nghien cuu mon hoc nganh khoa hoc xa hoi ca nhan va*.