How to filter list of contacts that do not have Topic associated in ZOHO CAMPAIGNS

How to filter list of contacts that do not have Topic associated in ZOHO CAMPAIGNS

I am trying to send out an email campaign to a specific topic list. When selecting recipients, it is telling me 10 of my recipients meeting the list criteria do not have topic associated with them. How can I find out those 10 contacts in ZOHO CAMPAIGN that do not have topics associated with them?