How to clear sites from Google App on my Galaxy S7

Open the Chrome app .

Tap More Settings.

Under "Advanced," tap Privacy Clear browsing data.

At the top, tap the dropdown under "Clear data from the."

Choose a time period, such as past hour or past day. ...

Select the types of information you want to remove.

Tap Clear data.

Under App options in the app settings you can select clear data as well if its the regular google app

If you are trying to erase the data on your google searches, the most effective way is by going to myactivity.google.com/. Here you can go into your accounts complete history, and change settings. Click on "Delete Activity By". There you can select more specific drop downs. I hope this is what you are looking for, and hope it helps.

There’s is simple way, you just need to open Settings > tap on Apps > Apps list > then locate the Google App, and tap on Storage option.

Now, tap on Clear Cache. That’s it. You don’t need to do anything else, You can do the same with other applications as well.

Here's an update, you could simply use this resource: https://techshali.com/delete-cache-galax...

It explains all the required steps and provide additional things that you could consider.

I hope it heps you!

Cheers!