Perhaps you should try some spelling variations:
cau trong » cau truong, cay trong, chu trong
trong van » trong cac
van hanh » van thanh, ban hanh, van anh
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
xang xa » lang xa, mang xa, ang xa
cua tre » cua te, cuu tre, cua triet
va cau » van cau, va cac, va dau
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: ((so sach) OR (so sanh)) ty xang xa hoi. lieu va cau trong van hanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) ty xang xa hoi. lieu va cau trong van hanh vi cua tre*.