There is no SEO section so I do not know where exactly to ask this question, but here it is.
https://www.google.ca/?gfe_rd=cr&ei=jgm3VIqFNtCy8wfH3YD4CA#q=twitter.com
Do you see how Google lists Twitter results in two columbs underneath the main heading title? How does one achieve that result with their website? Does only Google decides to make it show up that way?