Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu tuc » hieu thuc, hieu luc, hieu thuoc
thanh ca » thanh cha, thanh cac, thanh ha
dong hoa » dong hoc
cham xuc » cam xuc, chat xuc, cham soc
so sach » so sanh, bo sach, co sach
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu tu » chieu tu, hien tu, lieu tu
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky ((dong hoa) or (dong co)) hoi. ((hieu tu) OR (hieu tuc)) cham xuc ban thanh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((dong hoa) OR (dong co)) hoi. ((hieu tu) OR (hieu tuc)) cham xuc ban thanh ca cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky ((dong hoa) or (dong co)) hoi. ((hieu tu) OR (hieu tuc)) cham xuc ban thanh ca cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky ((dong hoa) or (dong co)) hoi. ((hieu tu) OR (hieu tuc)) cham xuc ban thanh ca cua tre*.