Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung dan lang slippers" » "dung dat lang slippers", "dung san lang slippers", "tung dan lang slippers", "dung ban lang slippers", "dung den lang slippers", "dung lan lang slippers", "dung dan lang slippery", "dung dan lang 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 dan lang 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 dan lang slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dan lang slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dan lang slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.