Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cac di snippets" » "luong cac di snippets", "dung cho di snippets", "dung tai di snippets", "dung cac dai snippets", "dung cac dia snippets", "dung cac doi 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 cac di 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 cac di snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung cac di snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung cac di snippets"))) or ("locating bug code snippets"))*.