::Per WP:NAMESORT, the sort value is {{DEFAULTSORT:Pham, Nguyen Sa}}.   DEFAULTSORT is not optional.  No, the fields are not optional.  If you read WP:PERSONDATA, you will find ALTERNATIVE NAMES is the only optional one.  Your refusal to follow AWB rules and Wikipedia guidelines is inexcusable.  There are categories, such as Category:Persondata templates without name parameter to fix blank parameters.  I am not threatening, just stating the fact that if you don't follow the rules, privileges are usually revoked.