Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung li trac slippers" » "dung lai trac slippers", "dung vi trac slippers", "dung le trac slippers", "dung li rac slippers", "dung hoi trac slippers", "dung li trac slippery", "dung li 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 li trac slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung li trac slippers") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung li trac slippers ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung li trac slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))*.