Perhaps you should try some spelling variations:
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
va dinh » van dinh, va kinh, va tinh
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky

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 san ky nang xa hoi. ((hieu ve) OR (hieu va)) cam tuc ((ban hanh) OR (va dinh)) dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang xa hoi. ((hieu ve) OR (hieu va)) cam tuc ((ban hanh) or (va dinh)) dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: te san ky nang xa hoi. ((hieu ve) OR (hieu va)) cam tuc ((ban hanh) or (va dinh)) dai cua tre*.