Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung ninh chao snippets" » "dung vinh chao snippets", "quang ninh chao snippets", "dung dich chao snippets", "dung trinh chao snippets", "dung tinh chat snippets", "dung minh chau 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 java java snippets") or ("dung ninh chao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dung ninh chao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung ninh chao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung ninh chao snippets"))) or ("locating bug code snippets"))*.