Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
sach hoi » sach doi, sach moi, cach thoi
cuu tong » cuu cong, cuu tinh, huu tung
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
nhan tao » nhan tai, nhan dan
so sach » so sanh, bo sach, co sach
hoi tai » hoc tai, hoi trac
hoi van » hoi va, hoi dan, hai 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: so sach hoi tai, nghien cuu tong ((hoc nganh) or (hoc pho)) khoa hoc xa hoi van nhan tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach hoi tai, nghien cuu tong ((hoc nganh) OR (hoc pho)) khoa hoc xa hoi van nhan tao.
• Adding a wildcard symbol may retrieve word variants: so sach hoi tai, nghien cuu tong ((hoc nganh) or (hoc pho)) khoa hoc xa hoi van nhan tao*.