Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
va hac » van hac, va khac, va hoc
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty xang xa hoi. lieu ((va hac) OR (va cac)) xuc va hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty xang xa hoi. lieu ((va hac) OR (va cac)) xuc va hanh vi cua tre*.