Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tran vi trac slippers" » "tran si trac slippers", "tran vu trac slippers", "tran mi trac slippers", "tran va trac slippers", "tran li trac slippers", "tran hoi trac slippers", "tran vi trac slippery", "tran vi 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.

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