Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cac toc » cac toi, cac nuoc, cac thoi
toc nam » hoc nam, oc nam, goc nam
nam dan » nam dinh
dan sai » danh sai, doan sai, dan tai
sai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
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: te sach ky nang x hoi. ((hieu qua) OR (lieu va)) cac toc nam dan sai cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. ((hieu qua) or (lieu va)) cac toc nam dan sai cua tre*.