Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
hieu van » hieu va, thien van, lieu va
va tinh » may tinh
cuu tre » cua tre, cau tren
te sach » toc sach
va kinh » qua kinh
nam xuc » cam xuc, nam xua, nam thuc
y nang » ky nang, ly nang, v nang
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 y nang x hoi. hieu van nam xuc ((va kinh) OR (va tinh)) va ((cuu tre) OR (cau treo))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu van nam xuc ((va kinh) or (va tinh)) va ((cuu tre) OR (cau treo))~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu van nam xuc ((va kinh) or (va tinh)) va ((cuu tre) OR (cau treo))*.