Not really a bug, but definitely poor usability, as objects (e.g., files) which are private and not accessible by a user are displayed in keyword search results (see attached image).
In addition, if certain objects aren't used on a Dolphin site (e.g., Ads) there should be a configurable option to remove them from list of objects searched (again see attached image). Including them here as a selectable keyword search option will only confuse users.