Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
dai cuu » dai huu
va vanh » va van, va danh, va hanh
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ((va cam) OR (va cao)) xuc va vanh ((dai cuu) OR (dai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu ((va cam) or (va cao)) xuc va vanh ((dai cuu) OR (dai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu ((va cam) or (va cao)) xuc va vanh ((dai cuu) OR (dai cua)) tre*.