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