Perhaps you should try some spelling variations:
lang van » tang van, hoang van, giang van
dang van » hoang van, hang va
danh vai » danh sai, danh va, doanh van
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
cuu ban » cua ban, cuu san, cuu nang
tu ban » thu ban, te ban
ban ky » van ky, dan ky
ve cac » va cac, vien cac

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

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