Perhaps you should try some spelling variations:
"dung nghe cat snippets" » "dang nghe cat snippets", "dung nghien cat snippets", "cuong nghe cat snippets", "dung nghe chat snippets", "dung nghe cao snippets", "dung nghe ca snippets"
"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 nghe cat 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 nghe cat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nghe cat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nghe cat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.