Perhaps you should try some spelling variations:
toc nguoi » con nguoi
lam nguoi » dao nguoi
sach hoc » cach hoc, sach hoi, sach duoc
tao mach » tao bac, tao may, tim mach
mach hoc » cach hoc, dich hoc, anh hoc
te sach » toc sach
hoc toc » hoc hoc, hoc thuoc, hoc toeic
hoc lam » duoc lam

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach hoc toc nguoi ) OR ( tao mach hoc lam nguoi ))~.
• Adding a wildcard symbol may retrieve word variants: (( te sach hoc toc nguoi ) or ( tao mach hoc lam nguoi ))*.