Perhaps you should try some spelling variations:
te sach » toc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va nang » van nang, da nang, cam nang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
v nang » vu nang, van nang, voi nang
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 ((v nang) OR (va nang)) xa hoi. hieu ve cham ((xuc va) OR (tuc va)) hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) OR (va nang)) xa hoi. hieu ve cham ((xuc va) or (tuc va)) hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) OR (va nang)) xa hoi. hieu ve cham ((xuc va) or (tuc va)) hanh vi cua tre*.