Perhaps you should try some spelling variations:
"dung long ha slippers" » "dung luong ha slippers", "dung cong ha slippers", "dung dong ha slippers", "dung dong hoa slippers", "dung long ha slippery", "dung long ha grippers"
"dung java java snippets" » "dung va java snippets"
"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 long ha 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 long ha slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung long ha slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung long ha slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.