Perhaps you should try some spelling variations:
chao chao » cao chat, cao cho, chat cho
toc sach » hoc sach, doc sach, thuoc sach
cao chao » cao chat, cao cho, cao cap
dang xay » dang van, van xay
cua tre » cua te, cuu tre, cua triet
sach su » cach su, sach tu, sach uu
xay hoi » xa hoi, tay hoi, cay phoi
su dang » su dung
va dao » ca dao
dao vi » dao voi, dao ve, dao va
vi cua » vai cua, di cua
su va » su van, tu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach su dang xay hoi. hieu ((cao chao) or (chao chao)) su va dao vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach su dang xay hoi. hieu ((cao chao) OR (chao chao)) su va dao vi cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach su dang xay hoi. hieu ((cao chao) or (chao chao)) su va dao vi cua tre*.