As you can see on the image below (this is what google shows for a games search):
if I look for games that have rating from 3.5 to 4.0 you will be able to find them with the following search line:
site:https://itunes.apple.com/us/app game rating: 3.5..4.2
as it will look for apps that games "game" and "rating: " in it. And according to this article when you look for a range you could use
... But look what I see when I search with the range:
Of course, it is pretty clear that there are tons of games with this criteria. What is the right way to search for them?