Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
vanh tai » van tai, hanh tai, anh tai
vanh dai » van dai, lanh dao, van dao
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
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: tu sach ky nang ((o hoi) OR (o hoc)). lieu va cham xuc va ((vanh dai) OR (vanh tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((o hoi) OR (o hoc)). lieu va cham xuc va ((vanh dai) or (vanh tai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hoi) OR (o hoc)). lieu va cham xuc va ((vanh dai) or (vanh tai)) cua tre*.