Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh luc » thanh luu, than luc, nhan luc
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
va thanh » gia thanh, va tinh, le thanh
lieu ban » lieu bai, dieu ban, lieu van
tang ma » mang may, tang van
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2

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 v ((nang xa) or (tang ma)) hoi. lieu ban thanh luc ((va thanh) or (van hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v ((nang xa) OR (tang ma)) hoi. lieu ban thanh luc ((va thanh) OR (van hanh)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach v ((nang xa) or (tang ma)) hoi. lieu ban thanh luc ((va thanh) or (van hanh)) vai cua tre*.