To know about the steps to clear Facebook search history on iPad device then log into your Facebook account and tap on the upper-right hand side of the page. Tap on settings and privacy and choose activity log. Click to filter in the upper-left on the activity log. Scroll down to the page to smoothly locate the search history and tap on circle to select to save changes. Lastly, hover the search that you want to delete from left panel and tap on three-dots vertical icon to delete the search. It will help to clear Facebook history on your iPhone device.