User-agent: Mediapartners-Google*
Disallow: 

User-agent: Yandex
Disallow: /

User-agent: twiceler
Disallow: /

User-agent: *
Disallow: admin.php
Disallow: /admin/
Disallow: /images/
Disallow: /includes/
Disallow: /themes/
Disallow: /blocks/
Disallow: /modules/
Disallow: /language/