Perhaps you should try some spelling variations:
"using data van slippers" » "using java van slippers", "using sat van slippers", "missing data van slippers", "using data phan slippers", "using dang van slippers", "using dao van slippers", "using data van slippery", "using data van grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung java java snippets") or ("using data van slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("using data van slippers"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( using data van slippers ))) or ( locating bug code snippets ))*.