Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
va thanh » ban thanh, va tinh, le thanh
hieu le » hieu ve, hieu he, hieu ly
hai cua » thai cua, dai cua, hoi cua
vu hai » su hai, vu ha
hai ky » thai ky, hoi ky, hai ly
le nam » ly nam, he nam, le na
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu hai ky nang x hoi. hieu le nam thuoc ((va thanh) or (gia thanh)) hai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu hai ky nang x hoi. hieu le nam thuoc ((va thanh) OR (gia thanh)) hai cua tu.
• Adding a wildcard symbol may retrieve word variants: vu hai ky nang x hoi. hieu le nam thuoc ((va thanh) or (gia thanh)) hai cua tu*.