Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung luc luan slippers" » "dong luc luan slippers", "dung luan luan slippers", "trung luc luan slippers", "dung ly luan slippers", "dung tu luan slippers", "dung luc luan slippery", "dung luc luan grippers"
"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 luc luan 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 luc luan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung luc luan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung luc luan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.