Perhaps you should try some spelling variations:
tap nguoi » tay nguoi, gap nguoi, tac nguoi
lam nguoi » dao nguoi, tay nguoi
lay nguoi » tay nguoi, ly nguoi, loai nguoi
mach hoc » cach hoc, dich hoc, anh hoc
tu mach » tu cach, tu manh, tu hach
hoc lam » duoc lam
hoc lay » hoc may, hoc ly, hoc lap

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

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