Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
ban thanh » ban hanh, ban hang
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
hoc ban » hoc bang, hoc dan, hoc bai
cua tre » cua te, cuu tre, cua triet
tang ma » mang may, tang van
sach v » sach va, sach y, sach 2
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai
ma hoi » mai hoi, xa hoi, ma hoa
v tang » 6 tang, 7 tang, 5 tang

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 v tang ma hoi. hieu ((va cam) or (va cao)) hoc ban thanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v tang ma hoi. hieu ((va cam) OR (va cao)) hoc ban thanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach v tang ma hoi. hieu ((va cam) or (va cao)) hoc ban thanh thai cua tre*.