How to user where clause on data which is eager loaded in laravel 5 ?

I want to display only the users who are admin and according to a search term which is entered in the searchbox

I store the keyword first

$keyword = $request->get('search');

and then

$users = User::with('admin')->where('role', 'super_admin')
                    ->where(function ($query) use($keyword){
                        $query->where('id', 'LIKE', "%$keyword%")
                        ->orWhere('name', 'LIKE', "%$keyword%");
            })->paginate($perPage);

This works as im searching terms from main table that is user table

But i also want to filter it using admin table columns as

$users = User::with('admin')->where('role', 'super_admin')
                    ->where(function ($query) use($keyword){
                        $query->where('id', 'LIKE', "%$keyword%")
                        ->orWhere('email', 'LIKE', "%$keyword%")
                        ->orWhere('name', 'LIKE', "%$keyword%")
                        ->orWhere($this->admin->status, 'LIKE', "%$keyword%");
            })->paginate($perPage);

This throws an error undefined property admin

Due to this line ->orWhere($this->admin->status, 'LIKE', "%$keyword%");

So how can i use admin column in filtering data

via Chebli Mohamed