Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung deu case snippets" » "dung de case snippets", "dung du case snippets", "dung dau case snippets", "dung eu case snippets", "dung does case snippets", "dung cjeu case 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 deu case 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 deu case snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung deu case snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung deu case snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.