Google rolledout two new improvements to Google search. The first offers an expanded list of useful related searches and the second is the addition of longer search result descriptions. Starting today, Google is deploying a new technology that can better understand associations and concepts related to your search, and one of its first applications lets Google offer even more useful related searches (the terms found at the bottom, and sometimes at the top, of the search results page).

For example, if you search for [principles of physics], our algorithms understand that "angular momentum," "special relativity," "big bang" and "quantum mechanic" are related terms that could help you find what you need.

Additionally, Gogle is now offering refinements for longer queries — something that's usually a challenging task. You'll be able to see our new related searches starting today in 37 languages all around the world.

When you do a search on Google, each result starts with a dark blue title and is followed by a few lines of text (what we call a "snippet"), which together give you an idea of what each page is about. To give more context, the snippet shows how the words of your query appear on the page by highlighting them in bold.

When you enter a longer query, with more than three words, regular-length snippets may not give you enough information and context. In these situations, Google now increases the number of lines in the snippet to provide more information and show more of the words you typed in the context of the page.