Delete your activity automatically. You can automatically delete some of the activity in your Google Account. On your computer, go to your Google Account. At the left, click Data & privacy. Under "History settings," click an activity or history setting you want to auto-delete. Click Auto-delete. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.