Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung von dong snippets" » "dong von dong snippets", "dung cong dong snippets", "dung va dong snippets", "dung van dong snippets", "dung voi dong snippets", "dung von cong 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 von dong 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 von dong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung von dong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung von dong snippets"))) or ("locating bug code snippets"))*.