Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang ((x hoi) OR (x ho)). hieu ((va cam) or (cao chat)) tuc va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang ((x hoi) OR (x ho)). hieu ((va cam) OR (cao chat)) tuc va hanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang ((x hoi) OR (x ho)). hieu ((va cam) or (cao chat)) tuc va hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te san ky nang ((x hoi) OR (x ho)). hieu ((va cam) or (cao chat)) tuc va hanh dai cua tre*.