Perhaps you should try some spelling variations:
loai nguoi » loi nguoi, hoa nguoi, moi nguoi
lap nguoi » lam nguoi, gap nguoi, lay nguoi
thu cach » thuc cach, thu canh, tu cach
cach hoc » cach thuc, cach thoi, dich hoc
hoc loai » hoc ngoai, hoc dai, so loai
so cach » so sach, co cach, loi cach
hoc lap » hoc tap, hoc lam, doc lap

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

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