Hi Noaviv,

Thanks for contacting us regarding your query.

If you should option the functions.php file and scroll to lines 1826-1840 you will locate the code that is responsible for the search results amount. Please change the posts_per_page = 12 to the amount you would like.

In regards to splitting this into 2 columns, this is a more advanced customization that falls outside of our support.

Here are three (3) highly recommended agencies that cater to WordPress customizations.

• WP Curve 
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• Codeable

#-----------------------------------------------------------------#
# Search related 
#-----------------------------------------------------------------#
if(!function_exists('change_wp_search_size')){
    function change_wp_search_size($query) {
        if ( $query->is_search ) 
            $query->query_vars['posts_per_page'] = 12; 
        return $query; 
    }
}
if(!is_admin()) {
    add_filter('pre_get_posts', 'change_wp_search_size');
}

Please let me know if there are any more questions that I may answer for you.

Cheers!