Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dun tung ho snippets" » "duc tung ho snippets", "duy tung ho snippets", "dung trung ho snippets", "dun tuong ho snippets", "dun trung hoc snippets", "dun trung hoa 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: (((("dun tung ho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dun tung ho snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dun tung ho snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dun tung ho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.