Page title different than Menu title

Hello, I’m coding a custom plugin with some menu entries and I can’t find how to make “Menu name” different tha “First page name”, for example, I need:

Mi-Plugin-Name
    - First-Page-Name
    - Other-Page

But I only get:

Mi-Plugin-Name
    - Mi-Plugin-Name
    - Other-Page

This is my code:

function my_admin_menu() {
	add_menu_page( "my-plugin-name", "my-plugin-name", "activate_plugins", "my-plugin-name", "my__main");
	add_submenu_page( "my-plugin-name", "Second entry", "Second entry", "activate_plugins", "my-plugin-name-second-entry", "my_second_entry" );
	add_submenu_page( "my-plugin-name", "Third", "Third", "activate_plugins", "my-plugin-name-sitios", "my_third" );
}

add_action('admin_menu', 'my_admin_menu');

Thank you