Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tran si trac slippers" » "tran thi trac slippers", "tran gia trac slippers", "tran li trac slippers", "tran vi trac slippers", "tran sinh trac slippers", "tran si trac slippery", "tran si trac grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 ("tran si trac slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran si trac slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran si trac slippers"))) or ("locating bug code snippets"))*.