Need More than 20 Filters on Participant File

I am creating an exit survey and need to filter FOR 18 employee term reasons OR exclude over 20 employee term reasons PLUS I need to exclude temps, contractors and interns, certain pay groups and make sure the term date is within a designated time period. I cannot figure out how to combine filters (I tried “AND” and commas) on a single line in the automatic feed for the participant file. I need a way to filter for or exclude multiple codes of a single metadata field so I do not run afoul of the 20 filters rule. Is there a way to make this happen or do I need to generate a workflow that filters for these and creates a new metadata field to filter for? Any advice or information is appreciated.