Turning it around does not work if there are no labels. The "name" parameter will not work in this case, since the player's name will be their actual name ("Skylinerw"), not "Player".
EDIT: Unless you mean to replace "Player" with the player name, of course.
Your coordinates were incorrect then, hence why the original command isn't working. You're trying to search where there are no mobs; logically it won't find any. You have to enter the coordinates that you are expecting the mob to be at. You can't just copy/paste any command and not change it to fit your system or world.
Again, putting the x/y/z/r parameters (without labels) at a point besides the beginning of the list will not work as you want it to. Insert the correct coordinates.