The Developer Console offers a search field that will allow you to search for the apps in your developer account. If you have more than 20 apps in your developer account, this feature will easily allow you to jump to one of your apps by simply searching for it, rather than navigating through the numerous pages of apps. You can access the search bar on the My Apps page of your Developer Console.
To search for an IAP item, you will have to go into a specific app that has IAP and go to “In App Items” in the menu on the left side. There will be a search bar at the top of this page.