ArcGIS API for JS experimented

I need someone who help me to solve this: when I using search with several layers and when performing a specific zoom in each one of these (layers of points and polygons) it happens that the zoom is carried out at the same scale (scale: 500000) without distinguishing neither the point nor the polygon; Due to this, when doing the search for the place (points layer) everything goes well, however when doing the search for the country (polygonal layer) the zoom is performed as if it were the points layer and I cannot see the entire searched country. (look lines 294 to 339)