matches[3] not working

what is the problem with this

add_filter(‘rewrite_rules_array’, ‘product_rules’);
add_filter(‘query_vars’, ‘add_query_vars’);
add_filter(‘init’, ‘flush_rules’);

function flush_rules() {
global $wp_rewrite;
$wp_rewrite->flush_rules();
}

function product_rules($rules) {
$new_rules = array(
‘products/(\d+)-.+/?$’ => ‘index.php?pagename=products&product_id=$matches[1]’,
‘products/(.+)/(.+)/?$’ => ‘index.php?pagename=products&category=$matches[1]&subcategory=$matches[2]’,
‘products/(.+)/(.+)/(\d+)-(.+)/?$’ => ‘index.php?pagename=products&category=$matches[1]&subcategory=$matches[2]&product_id=$matches[3]’,
);
return $new_rules + $rules;
}

function add_query_vars($vars) {
$vars[] = ‘product_id’;
$vars[] = ‘category’;
$vars[] = ‘subcategory’;

return $vars;
}

i could use the 1 and 2 rules but on the 3rd rule

products/(.+)/(.+)/(\d+)-(.+)

it doesn’t work
the result is
$matches[1] = $category/$subcategory
$matches[2] = $product_id

which it should be
$matches[1] = $category
$matches[2] = $subcategory
$matches[3] = $product_id