Perhaps you should try some spelling variations:
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, dao hanh
va danh » va dinh, va dan, dia danh
qua cam » qua cham, qua cac, qua ca
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
can ky » van ky, dan ky, ban ky
ma hoi » mai hoi, xa hoi, ma hoa
ca cua » co cua
tu can » tu ban, tu cac, thu canh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu can ky tang ma hoi. hieu qua cam xuc ((va danh) or (((va hanh) OR (ban hanh)))) ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky tang ma hoi. hieu qua cam xuc ((va danh) OR (((va hanh) OR (ban hanh)))) ca cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky tang ma hoi. hieu qua cam xuc ((va danh) or (((va hanh) OR (ban hanh)))) ca cua tre".
• Adding a wildcard symbol may retrieve word variants: tu can ky tang ma hoi. hieu qua cam xuc ((va danh) or (((va hanh) OR (ban hanh)))) ca cua tre*.