Hi Anne -
Rather than use the Advanced Criteria section to filter information out, under Data, go to Filter Report Data instead.

This will allow you to submit the criteria that you need for each separate field:

In your example, you can allow for the event start dates as well as select which regions to include or exclude from your report.
In case you don't see the field that you want to filter off of, you may need to click the pencil in the top right corner and toggle that field on, in order to use it on your filters.
Hope this helps!
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Rebecca Yousif
Senior Administrator - Event Technology
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