Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
van thanh » ban thanh, van tuan
te sach » toc sach
va cham » va chat, va tham
lap cua » lai cua, tap cua, lam cua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
va cam » va cac, va cao, va cai
o hoc » co hoc, mo hoc, so hoc
o hoi » co hoi, o hai, o hoa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((o hoi) OR (o hoc)). hieu ((va cam) OR (va cham)) xuc van thanh lap cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ((o hoi) OR (o hoc)). hieu ((va cam) or (va cham)) xuc van thanh lap cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((o hoi) OR (o hoc)). hieu ((va cam) or (va cham)) xuc van thanh lap cua tre*.