why no path names for custom routes in Rails

In my rails app following in routes.rb

resources :users

leads to following output for 'rake routes'

 users        GET    /users(.:format)                 users#index
              POST   /users(.:format)                 users#create
 new_user     GET    /users/new(.:format)             users#new
 edit_user    GET    /users/:id/edit(.:format)        users#edit
 user         GET    /users/:id(.:format)             users#show
              PUT    /users/:id(.:format)             users#update
              DELETE /users/:id(.:format)             users#destroy

& following in routes.rb (for my custom controller 'home')

match  '/new_user'        =>          'home#new_user', via: [:get]
match  '/users/:id/edit'  =>          'home#edit_user', via: [:get]
match  '/users/:id'       =>          'home#show_user', via: [:get]
match  '/users/:id'       =>          'home#create_user', via: [:post]

leads to following output for 'rake routes'

GET    /new_user(.:format)                home#new_user
GET    /users/:id/edit(.:format)          home#edit_user
GET    /users/:id(.:format)               home#show_user
POST   /users/:id(.:format)               home#create_user

why there are no path names for second case? like in first case ('new_user', 'edit_user')

is there any way to have path names for second case? as i want to use these path names in my views