Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, ban danh
doanh dai » doanh tai, doanh dao, doanh giai
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
nang o » nang ho, nang ro, nang x

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((nang o) or (nang co)) hai. hieu va cham xuc ban doanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang o) OR (nang co)) hai. hieu va cham xuc ban doanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang o) or (nang co)) hai. hieu va cham xuc ban doanh dai cua tre*.