Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nhan khong » nhan thong, nhanh chong, nganh khong
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoi » sach doi, sach moi, cach thoi
cuu cong » cua cong, thu cong, cac cong
cong tue » cong tu, cong tuyen, cong thuc
tue nhan » cu nhan
nhan dan » phan dau, gian dan, nhan tai
hoi tai » hoc tai, hoi trac
nhan va » nhan tai, 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: thuat sach hoi tai, nghien cuu cong tue nhan khong hoc xa hoi va ((nhan va) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach hoi tai, nghien cuu cong tue nhan khong hoc xa hoi va ((nhan va) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: thuat sach hoi tai, nghien cuu cong tue nhan khong hoc xa hoi va ((nhan va) or (nhan dan))*.