Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, kho tang, ky trong
hai cua » thai cua, dai cua, hoi cua
ky dang » ky nang, ky danh
ve cham » va cham, ve chat, vu cham
dua ban » dia ban, cua ban, qua ban
su sac » su sach, su cac, su xac
va cao » va cac, va co, va dao

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 tang) OR (ky dang)) ma hoa. hieu ((ve cham) or (va cao)) dua ban thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky tang) OR (ky dang)) ma hoa. hieu ((ve cham) OR (va cao)) dua ban thanh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ((ky tang) OR (ky dang)) ma hoa. hieu ((ve cham) or (va cao)) dua ban thanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ((ky tang) OR (ky dang)) ma hoa. hieu ((ve cham) or (va cao)) dua ban thanh hai cua tre*.