This short tutorial is about the steps required to clear the search history in Facebook. Facebook search history for your account is listed under the Activity log and this can be seen only by you. But if you still wish remove the searches then you can follow the below mentioned steps.
Step 1: Login to your Facebook Account and click Settings drop down to access Activity Log.
Step 2: Under Activity Log section (on the left hand side), click the MORE option.
Step 3: Click Search option listed under Activity Log.
Step 4: In the Facebook Search History screen, you can use Clear Searches to remove all the Searches done on your Facebook account.
And if you want to remove individual search item then you can use the remove icon which is available next to the Search.