Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » va thanh, va danh, ban hanh
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua
o hai » co hai, so hai, o lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((o hai) or (x ho)). hieu ve cham xuc ((va hanh) or (van hanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((o hai) OR (x ho)). hieu ve cham xuc ((va hanh) OR (van hanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((o hai) or (x ho)). hieu ve cham xuc ((va hanh) or (van hanh)) di cua tre*.