Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
hang x » nang x, hoang xa, chang xu
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 hang x hoi. hieu va cac ((xuc va) OR (duc va)) ((hanh dai) OR (lanh dao)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty hang x hoi. hieu va cac ((xuc va) OR (duc va)) ((hanh dai) or (lanh dao)) cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ty hang x hoi. hieu va cac ((xuc va) OR (duc va)) ((hanh dai) or (lanh dao)) cuu tre*.