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
nhan tain » nhan dan, nhan tao, han tai
sach noi » cach noi, sach doi, sach hoi
noi tiep » noi tiet, noi tieng, hoa tiep
nhan tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi cua » hoi chuc
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: su sach noi tiep, nghien cuu mon hoc nganh khong hoc xa hoi cua ((nhan tain) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach noi tiep, nghien cuu mon hoc nganh khong hoc xa hoi cua ((nhan tain) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: su sach noi tiep, nghien cuu mon hoc nganh khong hoc xa hoi cua ((nhan tain) or (nhan tai))*.