Toolbar

I have a mac and I use Safari. In my took bar I have the google search tool, and it used to give me the drop down list like it does when you’re actually on the google website, but recently it’s stopped doing that and only drops down to show me my previous searches. I tried "customize toolbar" but there wasn’t an option to change it…How can I change it back?

It should be on the right hand side of the search bar to turn on