Perhaps you should try some spelling variations:
danh tai » doanh tai, dinh tai, hanh tai
ban danh » ban doanh, ban hanh, ban dan
te sach » toc sach
sach va » sach xa, sach ha, sach dao
tai cua » thai cua, tai cuc, tri cua
hoc ban » hoc bang, hoc dan, hoc bai
cua tre » cua te, cuu tre, cua triet
va tang » va trang, van tang, ha tang
va cao » va cac, va co, va dao
ma hoi » mai hoi, ma hoa, me hoi
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach va tang ((ma hoi) or (xa hoi)). hieu ((va cam) or (va cao)) hoc ban danh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach va tang ((ma hoi) OR (xa hoi)). hieu ((va cam) OR (va cao)) hoc ban danh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach va tang ((ma hoi) or (xa hoi)). hieu ((va cam) or (va cao)) hoc ban danh tai cua tre*.