Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan than cau snippets" » "dan chan cau snippets", "ban than cau snippets", "van than cau snippets", "dan toan cau snippets", "dan phan cau snippets", "dan than cap 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: (((("dan than cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan than cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan than cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan than cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.