How to delete Files from not displaying in Recents On MacBook Pro on High Sierra 10.13.2

HI,

My problem is I don't like when I open my finder, that all of my recent documents were listed there. I want to delete them from the Recent list. I have already deleted files from recents menu. I know how to hide Recents from showing in sidebar too. Can you please help me with actually removing/deleting files so that they don't show up in my recents tab when I open finder.