Perhaps you should try some spelling variations:
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cuu tre, cua triet
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky
nang o » nang co, nang ho, nang ro
va cao » va co, va dao, va bao
ca cua » co cua
o lai » o lao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bai ky nang o lai. lieu ((va cao) OR (va cac)) luc ((va danh) or (va dinh)) ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky nang o lai. lieu ((va cao) OR (va cac)) luc ((va danh) OR (va dinh)) ca cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bai ky nang o lai. lieu ((va cao) OR (va cac)) luc ((va danh) or (va dinh)) ca cua tre".
• Adding a wildcard symbol may retrieve word variants: tu bai ky nang o lai. lieu ((va cao) OR (va cac)) luc ((va danh) or (va dinh)) ca cua tre*.