I am curious. What exactly is wrong with "some few words"? In german it would make total sense.
But there are plenty of examples of phrases in English which are acceptable but which break grammar rules.
In short, you would say "a few words".
It makes sense to me, but I'm not a native speaker either so I don't know if there's an actual rule behind this.
http://www.oxforddictionaries.com/definition/english/some-fe...
That is, while "some few" is ungainly, pausing and delivering it as though 'few' is reinforcing or clarifying 'some' (through a change in tone or similar) would sound a little archaic, perhaps, but completely natural.