Router variable other than some absolute values

Hello there,
I have a problem with routes.
I have some routes that look like this:

    {
      path: '/setting/',
      url: '/ajax_loading.php?link1=setting',
    },
    {
      path: '/setting/:a',
      url: '/ajax_loading.php?link1=setting&page={{a}}',
    },

and another route with variables:

{
  path: '/:a/:b',
  url: '/ajax_loading.php?link1=timeline&u={{a}}&type={{b}}',
},

The problem is when loading “/setting/something” It routes to “/ajax_loading.php?link1=timeline&u=setting&type=something” not “/ajax_loading.php?link1=setting&page=something” .
Is there a way to resolve this?