Here are the steps to app search optimize you magazine issue settings. Please note that this feature only works on iOS9 and on magcast version 7 or higher.
+ Click on your mag issue cover
+ Click on Settings
+ Scroll down and click on Advanced Options
+ Edit the App search title, the app search description and the app seach keywords
+ Click on Save
+ Note that your app search result will display your magazine issue cover too
+ There is NO need to re-publish your magazine issue