The address search is used to find a physical address. It can be used to locate properties, places, roads and administrative boundaries around the world such as states, districts and zip codes.
Click on the search box that you can see in the top right corner of the map.
Try typing in:
As you type you will be shown possible results, as soon as you see the result you are looking for, click on it and you will be zoomed to the location and a popup will open containing information about the feature.
From the administration area of your map the attribute search tool can be activated from the toolbox panel in the administration toolbar. See the following section in the documentation for more details.