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