Perhaps you should try some spelling variations:
"xuan using data slippers" » "xuan sinh data slippers", "xuan sang data slippers", "xuan using java slippers", "xuan using sat slippers", "xuan missing data slippers", "xuan using data slippery", "xuan using data 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 ("xuan using data slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("xuan using data slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( xuan using data slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("xuan using data slippers"))) or ("locating bug code snippets"))*.