I have an iPhone 6S running 9.3.3 and when I go to search in the App Store, I put the name of the app and hit search but nothing happens. I tried popular apps such as Facebook etc, but nothing happens. But I can click on an app name that is listed in the popular search and it will go to the program. But then when I am in the popular apps shown, I can try again to type an app name and again it will not go anywhere. any suggestions?