Perhaps you should try some spelling variations:
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
nang ma » tang ma, sang ma, nang cao
cua tre » cuu tre, cua triet, dua tren
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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 ma hoi. hieu qua cac xuc ((va danh) or (va hanh)) ca ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky nang ma hoi. hieu qua cac xuc ((va danh) OR (va hanh)) ca ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu bai ky nang ma hoi. hieu qua cac xuc ((va danh) or (va hanh)) ca ((cua tre) or (cua te))*.