Perhaps you should try some spelling variations:
danh tai » dinh tai, hanh tai, anh tai
te sach » toc sach
hieu ve » hieu va, hieu van
cam tuc » cam xuc, nam thuc, dam thuc
cuc tre » duc tre, cua tre, cuu tre
y nang » ky nang, ly nang, v nang
cam tu » cam thu, nam tu, dam tu
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 ve ((cam tuc) OR (cam tu)) va ((danh tai) OR (doanh tai)) cuc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu ve ((cam tuc) OR (cam tu)) va ((danh tai) or (doanh tai)) cuc tre~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ve ((cam tuc) OR (cam tu)) va ((danh tai) or (doanh tai)) cuc tre*.