how do I delete a wordpress category from google results?

Another option, and I believe it is simpler, is to add a file called robots.txt to the root of the site.

Within this file place:

User-agent: *
Disallow: /nossos-clientes

This tells all robots not to index the link our-clients and everything below it. You can specify a single link if you need, by putting the entire url, eg:

User-agent: *
Disallow: /nossos-clientes/meu-cliente

In the above case, only "my-client" would not be indexed and the "our-client" link would.

  

Recommended for WordPress sites:

User-agent: *
Disallow: /wp-admin/
Disallow: /wp-includes/

# Seus bloqueios personalizados #
Disallow: /nossos-clientes

You can try using the Yoast plugin and apply the code and remove only the category at hand:

function sitemap_exclude_taxonomy( $value, $taxonomy ) { if ( $taxonomy == 'nossos-clientes') return true; } add_filter( 'wpseo_sitemap_exclude_taxonomy', 'sitemap_exclude_taxonomy', 10, 2 );