please check the below links that i used for sp2013 search configurationhttp://www.sharepointpals.com/post/How-to-create-Search-Configuration-in-SharePoint-2013http://www.c-sharpcorner.com/UploadFile/Roji.Joy/enterprise-search-configuration-in-sharepoint-2013/http://www.sharepoint-journey.com/enterprise-search-configuration-in-sharepoint-2013.html