Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
duc ban » duc tan, duc van, dua ban
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
v pham » vi pham
d pham » d phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang xa hoi. hieu ((v pham) or (d pham)) duc ban thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang xa hoi. hieu ((v pham) OR (d pham)) duc ban thanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky dang xa hoi. hieu ((v pham) or (d pham)) duc ban thanh hai cua tre*.