Perhaps you should try some spelling variations:
te sach » toc sach
sach xa » sach dao, sach nha, sach bai
xa nang » da nang, va nang, xa nong
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » tuc va, xac va
luc va » tuc va, loc va
vi cua » vai cua, di cua

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 xa nang xa hoi. hieu va cam ((((xuc va) OR (luc va))) OR (duc va)) hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach xa nang xa hoi. hieu va cam ((((xuc va) or (luc va))) or (duc va)) hanh vi cua tre*.