Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cuon sach code slippers" » "duong sach code slippers", "cuoc cach code slippers", "co sach code slippers", "cuon sach che slippers", "cuon sach de 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 ("cuon sach code slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cuon sach code slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cuon sach code slippers"))) or ("locating bug code snippets"))*.