Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"bon cong cac snippets" » "bo cong cac snippets", "ban cong cac snippets", "bot cong cac snippets", "bon cuong cac snippets", "bon cong tac snippets", "bon cong cau 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: (((("bon cong cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bon cong cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bon cong cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bon cong cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.