Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong so tran slippers" » "cong san tran slippers", "cong hoa tran slippers", "cong so trang slippers", "cong so tranh slippers", "cong so tan slippers", "cong so tran slippery", "cong so tran 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 ("cong so tran slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cong so tran slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cong so tran slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cong so tran slippers"))) or ("locating bug code snippets"))*.