Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cuu tong » cuu cong, cuu tinh, huu tung
khoa hoc » hoa hoc
nhan tao » nhan tai, nhan dan
su sach » so sach, vu sach
hoc tai » hoc dai, hoc tap, hoc bai
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: su sach hoc tai, nghien cuu tong ((hoc nganh) or (hoc pho)) khoa hoc xa hoi va nhan tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tai, nghien cuu tong ((hoc nganh) OR (hoc pho)) khoa hoc xa hoi va nhan tao.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tai, nghien cuu tong ((hoc nganh) or (hoc pho)) khoa hoc xa hoi va nhan tao*.