Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
sang kyo » sang tao, dang ky, sang cho
danh vi » hanh vi, dinh vi, danh di
cuu ban » cuu van, cua ban, cuu san
cam cuu » cham cuu, cap cuu
hieu ve » hieu va, hieu van
van hoe » van hoa, van hoc, van hieu
sang ky » dang ky, tang ky, bang ky
van hoi » van hoa, van hoc, van loi
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sang ky) or (sang kyo)) dang ((van hoi) OR (van hoe)). hieu ve cam cuu ban danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sang ky) OR (sang kyo)) dang ((van hoi) OR (van hoe)). hieu ve cam cuu ban danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sang ky) or (sang kyo)) dang ((van hoi) OR (van hoe)). hieu ve cam cuu ban danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sang ky) or (sang kyo)) dang ((van hoi) OR (van hoe)). hieu ve cam cuu ban danh vi cua tre*.