Perhaps you should try some spelling variations:
"dung dang dan slippers" » "dung dan dan slippers", "dung dong dan slippers", "dung danh dan slippers", "dung dang dang slippers", "dung dang van slippers", "dung dung dan slippers", "dung dang dan slippery", "dung dang dan 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"

Try widening your search to All Fields.

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

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