Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
va dan » ca dan, va dau, va dap
va dao » ca dao
da cua » dai cua, day cua, dan 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: hoc sach ty lang xa hoi. ((hieu ve) OR (lieu va)) cam xuc ((va dan) OR (va dao)) da cua tre~.
• Adding a wildcard symbol may retrieve word variants: hoc sach ty lang xa hoi. ((hieu ve) or (lieu va)) cam xuc ((va dan) or (va dao)) da cua tre*.