I read many many posts on stackoverflow and I also went through many tutorials like Vogella and theNewBoston to see where am I making a mistake in publishing my app. I expo
There's possibility that the app that you're trying to search is not compatible with your device. That is why it is not showing up in your device. However, when you look up on the desktop site, it is visible. This is because, you are just viewing the app. If you will sign into you Google account, then you'll realise that when click the install button (on the desktop site) it will show you the devices that are associated with that account asking with their compatibility. Sometimes it is also that some apps are region specific and are not visible (due to the same reason)