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