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
hai cua » thai cua, dai cua, hoi cua
ky dang » ky nang, ky danh
dang ma » dang mau, dang mam, dang mat
qua ban » cua ban, qua quan
su cac » tu cac, su can, eu cac
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
su cao » cu cao, vu cao, su co

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

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