I get 11,350,000,000 results may be Google keeps updating its index.

* * gave me 11,950,000,000 results
*.* gave me 11,990,000,000 results

With [* *], I get 11,350,000,000
with [* * *], I get 11,770,000,000
with ["* *"], I get 11,830,000,000

Interesting...