Today Google officially announced rolling out two new improvements in result page. The first is on refinement in related terms and the second is displaying longer description in the search snippet.
Refined Related Terms: Google claims to have introduced a new technology that can better understand the association related to your search query and generate more relevant and refined related terms in the result page.
Longer Search Snippets: For the past few months webmasters have claimed that the see longer description in search snippet which runs to three lines. Google has now officially confirmed this by introducing longer descriptions by this if you enter query more than three words the regular-length description will be replaced by the longer description to provide more information to the users.