It's possible to go to face search from the panel of monitoring of detected faces. To do this:

1. From the Show faces drop-down list (1) select the required value.
   
2. From the list of detected faces select the image by which search will be performed. Right-click it and select the Search from the menu (2).

As a result going to face search will be performed. The image of detected face will be loaded as image for search.