Perhaps you should try some spelling variations:
va danh » va dan, va hanh, dia danh
cua tre » cuu tre, cua triet, dua tren
cao luc » bao luc, cao duc, cao suc
va dinh » van dinh, va kinh, va tinh
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky
va cao » va cac, va co, va dao
nang o » nang co, nang ho, nang ro
cua te » cua tu
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 bai ky nang o hai. lieu va cao luc ((va danh) or (va dinh)) ca ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky nang o hai. lieu va cao luc ((va danh) OR (va dinh)) ca ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bai ky nang o hai. lieu va cao luc ((va danh) or (va dinh)) ca ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu bai ky nang o hai. lieu va cao luc ((va danh) or (va dinh)) ca ((cua tre) OR (cua te))*.