If you are running into problems with the Map Store search in-app we are aware of this.
We are currently working on providing a better Map Store search experience to our users! We encourage users to visit our public website Map Store, if they are experiencing difficulty in-app, as this search portal has some of the new additions/changes that have been made in preparation for integration into the app.
The public search can be found at: store.avenzamaps.com
If you are still having problems, please don't hesitate to contact our Support Team