When using CookComputing (XML-RPC.net) trying to search on mail.notification model with just one condition, it is rather simple, as you just have to call:

ids = models.execute_kw (db, uid, password, 'res.partner', 'search', [[['name', '=', "jhon"] or ['name', '=', "wil"]]])

but I need to use the or operator for the domain condition.

thanks, if someone can help me