Although you are only able to view your entire search history, be warned, if you leave your Gmail account logged in on a communal or family machine, not only can people snoop on your emails, they can browse your searching history too.27 Dec 2016
Can someone see your search history on another device?
Google searches appearing on other devices is a common symptom of device sharing between friends and family. Something as small as checking your emails on a shared computer could result in your Google searches appearing on that device. Fortunately this issue is easy to fix.2 May 2019