Time causes differences in results For example, we regularly add new content from the web soon after it's published. Those who search a few hours or even a few minutes apart may find variations because of newly available content. There are data centers around the world that Search uses.

Tip: To find results from a specific website, put site: in front of a site or domain. For example, site:youtube.com . Or, to exclude a website from results, add a minus sign, like -site:youtube.com . Learn more about how to refine your web searches.

For example, if you search for chocolate cake, and then search again for “how to make,” Google might be more likely to predict that you're searching for “how to make chocolate frosting.” These predictions are based on your past searches to give you better results and help you pick up where you left off.