Perhaps you should try some spelling variations:
"cong danh va slippers" » "cuong danh va slippers", "cong dan va slippers", "cong thanh va slippers", "cong doanh va slippers", "cong hanh va slippers", "cong anh va slippers", "cong danh va slippery", "cong danh va grippers"
"dung java java snippets" » "dung va java snippets"
"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: (((("cong danh va slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( cong danh va slippers ) or ( dung java java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cong danh va slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.