User-agent: Yandex
Disallow: /*_openstat
Disallow: /*from=adwords
Disallow: /*buyitem=
Disallow: /search/
Host: shina-na-dom.ru 

User-agent: Googlebot
Disallow: /*_openstat
Disallow: /*from=adwords
Disallow: /*buyitem=
Disallow: /search/ 

User-agent: *
Disallow: /search/
Disallow: /?buyitem=