Perhaps you should try some spelling variations:
tay nguoi » toc nguoi, dao nguoi
lam nguoi » dao nguoi
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
te sach » toc sach
hoc tay » toc tay, hoc tap, hoc may
te mach » ke mach, tim mach, tao mach
hoc lam » duoc lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach hoc tay nguoi ) or ( te mach hoc lam nguoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach hoc tay nguoi ) OR ( te mach hoc lam nguoi )).
• Adding a wildcard symbol may retrieve word variants: (( te sach hoc tay nguoi ) or ( te mach hoc lam nguoi ))*.