Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung do dac slippers" » "dung doi dac slippers", "dung co dac slippers", "dung de dac slippers", "dung do duc slippers", "dung do dai slippers", "dung so dac slippers", "dung do dac slippery", "dung do dac 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 do dac 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 do dac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung do dac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung do dac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.