Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty mang » ty xang, ty hang, tin mang
mang xa » lang xa, mang may, dang xay
thi van » thi lan, thi hanh, thi nang
cua tre » cua te, cuu tre, cua triet
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: "tu sach ty mang xa hoi. thi van nam ((cua vat) OR (cua ban)) hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty mang xa hoi. thi van nam ((cua vat) OR (cua ban)) hanh vi cua tre*.