Google Places API Search Radar - Search over a large radius, returning fewer results than a smaller radius (inside a large one)

I am using google radar search api with these parameters:

geo_point = {'lat' : '39.70856498268634', 'lng': '-8.722243487895712'}
radius = '12210'

      

        
        
        
      

    

This is my big circle and it returns 196 results.

I am doing another one with the following:

geo_point = {'lat' : '39.71196390304338', 'lng': '-8.764890291528587'}
radius = '5700'

      

        
        
        
      

    

This is my little circle and it returns 200 hits.

The problem is that the small circle is inside the large one. How can I get more results in my small circle / why am I not getting everything in the big one?

The types I'm looking for are as follows:

google_establishment_types = 'bar|cafe|casino|food|lodging|night_club|restaurant|stadium'