Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan luan code slippers" » "dan luan cong slippers", "dan luan che slippers", "dan luan de slippers", "doanh luan code slippers", "dung luan code slippers", "tang luan code slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dan luan code slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dan luan code slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dan luan code slippers"))) or ("locating bug code snippets"))*.