Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach ky » sac ky, sach y, sach ty
ban voi » ban moi, ba voi, ban noi
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
ve cam » ve cac, va cam, ve cai
ban ve » ban va

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: toc sach ky lang xa hoi. hieu ((ve cam) OR (ve cham)) duc va ((ban ve) OR (ban voi)) cua tre~.
• Adding a wildcard symbol may retrieve word variants: toc sach ky lang xa hoi. hieu ((ve cam) or (ve cham)) duc va ((ban ve) or (ban voi)) cua tre*.