Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong ca dan slippers" » "cong cua dan slippers", "cong cau dan slippers", "cong cac dan slippers", "cong ca dao slippers", "cong ca dan slippery", "cong ca dan 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: (((("cong ca dan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong ca dan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong ca dan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ca dan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.