Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, hinh tai
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
han tai » hang tai, nhan tai, van tai
cuu tre » cua tre, cau tren, cau treo
xuc va » tuc va, luc va, xac va
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 ty nang x hoi. hieu va cac ((xuc va) OR (duc va)) ((hanh tai) OR (han tai)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x hoi. hieu va cac ((xuc va) or (duc va)) ((hanh tai) OR (han tai)) cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang x hoi. hieu va cac ((xuc va) or (duc va)) ((hanh tai) OR (han tai)) cuu tre*.