This describes the difference in how filter logic applies to triggers and filters in a Smart Campaign Smart List.
You can view the video on this here.
Filter logic in a Smart List only applies to filters (the green criteria) and not triggers (the orange criteria.) If you have multiple triggers in a Smart Campaign, they will always operate on ANY/OR logic, which is to say, only one of the triggers needs to fire in order for the Smart Campaign to run. The filter logic you select, whether it is AND, ANY, or Advanced, will be used to further filter the leads after the trigger has fired.