Perhaps you should try some spelling variations:
"using hoc dung slippers" » "sinh hoc dung slippers", "using low dung slippers", "ung hoc dung slippers", "using hoc ung slippers", "using hoc dan slippers", "using hoc cong slippers", "using hoc dung slippery", "using hoc 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 hoc 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 hoc dung slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using hoc dung slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using hoc dung slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.