Google Upgrades on Punctuation Search Results

Google has updated its search results for searching symbols and punctuation marks like, comma, full-stop, carat, and many more. These punctuation marks will now return search results. For now all I can see Wikipedia on top search with definition and details for particular punctuation mark.


But there is one symbol, asterisk (*), for which Google does not show any result.



http://feeds.feedburner.com/Search-Engine-Marketing-Optimization-Guide?format=xml