My file robots.txt:
user-agent: *
Disallow: /&limit
Disallow: /&sort
Disallow: /?route=checkout/
Disallow: /?route=account/
Disallow: /?route=product/
Disallow: /?route=affiliate/
Disallow: search
Disallow: /pruduct/
I added last row Disallow: /pruduct/
and changed Disallow: /?route=product/search to Disallow: /?route=product/