Perhaps you should try some spelling variations:
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
va danh » va dinh, va dan, va hanh
cac xuc » cam xuc, cac nuoc, chat xuc
qua cac » cua cac
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
ca cua » co cua
tu sai » tu bai, tu san, tu cai

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

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