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