Dose a ‘where’ in the param loop on multiselect field

Dose a ‘where’ in the param loop on multiselect field where the field is a relationship field with an array of objects.
eg: category.post_title is a multiselect relationship.

`$searchword = ‘food’;

$params = array(
‘where’ => ‘category.post_title = “‘ . pods_sanitize( $searchword ) . ‘” //
);
$pod->find( $params );