Here’s an article from The Official Google Blog written by Elizabeth Tucker which I thought you might find of interest.

When you search for information on Google, you’re probably accustomed to seeing a lot of relevant results in a fraction of a second. But maybe you’ve found yourself wondering how Google connected those results to the words you typed, especially if you didn’t get exactly what you were expecting to find. 

To read more head over to The Official Google Blog

Till next time,
D