Problem: You've created a filter and it includes n number of objects according to the browse filters and the filter's log. However when you browse the results of the filter you see significantly fewer objects or no objects at all.
Resolution: The filter does indeed have the number of objects shown in the filter list and the filter's log, it's just that you've viewing only a portion of the filter results.
Check the Main Filter - the left panel with types and regions. When viewing the filter's results, the viewing of the filter results is interactively filtered by the Main Filter. This allows you to drill into and search within the filter results. Select All Types and All Regions, and you should see all the results from your filter.