Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cua chen snippets" » "dung luan chen snippets", "dung cho chen snippets", "dung cua chien snippets", "dung cua che snippets", "dung cua chung 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 cua chen snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cua chen snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cua chen snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cua chen snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.