Mixitup Filter Rich Text

Hi, So I’ve got mixitup set. But I’d like to filter based on text in a rich field of CMS. The problem is that the class created by the rich text includes ALL the words in that element, but the filter button just includes ONE of the words, so the filter isn’t working. What code is needed to assign a class to each group of words between each comma in the rich field?

This is the current code:
('.w-dyn-item').addClass(function() { return classify((this).find(’.mix-name’).text());

I’m even willing to pay.

Thank you