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