In the report 'Analysis of search queries' was released data about Emoji
In may 2016 to Google appeared the ability to search by Emoji. Now the data for these queries began to appear in the report 'Analysis of search queries' in webmaster tools
Innovation noted by the one of the users of the service in Germany. The screenshot below shows that his site received 50 hits by request with Emoji cake:
Eearlier this month, Google also returned Emoji in the search results.
In 2015, the representative of search John Mueller said that Google will no longer show Emoji characters in the headers of snippets and advised webmasters not to waste time to add them to the site. More than a year of the Emoji do not appear in the search results, however now they are again back in the search engine results page.