Perhaps you should try some spelling variations:
ngan khong » nganh khong, nhan khong, ngan hang
khong hoc » khung hoc, thong hoc, khong thuoc
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
luc ngan » luc nganh, luc nhan, luat ngan
phan tao » nhan tao, phan tan, phan bao
phan tap » phan lap, han tap, pha tap
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: thu sach hoc tap, nghien cuu dong luc ngan khong hoc xa hoi va ((phan tao) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach hoc tap, nghien cuu dong luc ngan khong hoc xa hoi va ((phan tao) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cuu dong luc ngan khong hoc xa hoi va ((phan tao) or (phan tap))*.