Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung lam ra slippers" » "dung luan ra slippers", "dung tai ra slippers", "dung dat ra slippers", "dung lam ha slippers", "dung lam ra slippery", "dung lam ra 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 lam ra 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 lam ra slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lam ra slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lam ra slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.