Make sure you have turned on auditing for the users in your system for the events that you want to record. It sounds like maybe you are only capturing those few event types, and not things like entry views. A user's auditing settings are captured at the start of their session, so changes you make to the auditing configuration won't take effect until the next time a user logs in.

Also, when you have the filter set like you do in the screenshot, you are limiting the results to actions taken on that exact folder, like changing its metadata. So something like creating a document inside that folder or opening a document inside that folder aren't included. For those, you might want to filter by the parent folder - i.e. events where the entry's parent is your folder of interest.