Perhaps you should try some spelling variations:
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va kinh » va tinh, qua kinh
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tu cai » tu cac, tu can, tu bai
cai ky » cao ky, cac ky, cam ky
ma hoi » mai hoi, xa hoi, ma hoa
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cai ky nang ma hoi. hieu va cac xuc ((va kinh) or (va hanh)) ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cai ky nang ma hoi. hieu va cac xuc ((va kinh) OR (va hanh)) ca cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cai ky nang ma hoi. hieu va cac xuc ((va kinh) or (va hanh)) ca cua tre*.