Perhaps you should try some spelling variations:
ban vanh » ban hanh, ban van, ban anh
vanh dai » van dai, vanh tai, lanh dao
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
ma hoi » xa hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao

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 ky dang ((ma hoi) or (mai hoi)). hieu va cam xuc ban vanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang ((ma hoi) OR (mai hoi)). hieu va cam xuc ban vanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ((ma hoi) or (mai hoi)). hieu va cam xuc ban vanh dai cua tre*.