Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung le trac slippers" » "dung len trac slippers", "dung he trac slippers", "dung de trac slippers", "dung li trac slippers", "dung le trang slippers", "dung le trac slippery", "dung le trac 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 le trac 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 le trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung le trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung le trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.