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 hoi » sach doi, sach moi, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
nhan tai » hang tai, van tai, toan tai
te sach » toc sach
hoi tap » hoi dap, hoc tap, hoi tai
hoi cac » hoc cac, voi cac, hoa cac
nhan va » nhan dan, nhan tao, phan van
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 hoi tap, nghien cuu dong hoc nganh khong hoc xa hoi cac ((nhan va) OR (nhan tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoi tap, nghien cuu dong hoc nganh khong hoc xa hoi cac ((nhan va) OR (nhan tai))".
• Adding a wildcard symbol may retrieve word variants: te sach hoi tap, nghien cuu dong hoc nganh khong hoc xa hoi cac ((nhan va) OR (nhan tai))*.