Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
cac duc » cao duc, cac dac, cac nuoc
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet

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 xa hoi. ((hieu va) OR (hieu qua)) ((cac duc) OR (cac du)) va thanh hai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((hieu va) OR (hieu qua)) ((cac duc) or (cac du)) va thanh hai cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((hieu va) OR (hieu qua)) ((cac duc) or (cac du)) va thanh hai cua tre*.