Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung huu han slippers" » "duong huu han slippers", "dang huu han slippers", "dung hieu han slippers", "dung huu phan slippers", "dung huu nhan slippers", "dung huu hanh slippers", "dung huu han slippery", "dung huu han 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 huu han 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 huu han slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung huu han slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung huu han slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.