Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
sach ky » sac ky, sach y, sach ty
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 co, nang ho, nang ro
banh d » anh d, binh d
kinh d » kinh do, binh d, kinh i
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang o hoi. lieu va cham xuc ban ((banh d) or (kinh d)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang o hoi. lieu va cham xuc ban ((banh d) OR (kinh d)) cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang o hoi. lieu va cham xuc ban ((banh d) or (kinh d)) cua tre*.