Perhaps you should try some spelling variations:
thuc nguoi » toc nguoi
nguoi san » nguoi tay, nguoi dao, nguoi ma
san hanh » san thanh, ban hanh, van hanh
ly thuc » ly thuoc, ly thu, ly thue
cua tre » cua te, cuu tre, cua triet
hanh di » hanh vi, hanh de, hang di
hieu ly » hieu ky, lieu ly, dieu ly
su sac » su sach, su cac
su xac » pu xac, su cac
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky nang x hoi. hieu ly thuc nguoi san hanh di ((cua tre) OR (cua tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su xac)) ky nang x hoi. hieu ly thuc nguoi san hanh di ((cua tre) or (cua tu))~".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su xac)) ky nang x hoi. hieu ly thuc nguoi san hanh di ((cua tre) or (cua tu))*.