As of today, when searching for Playbooks inside a Deal, the terms inserted the search bar are only searched considering the Titles of the playbooks.
I agree that terms in Title have a higher relevance, but just having the Playbook listed when the word searched is contained in the Body would be great for the user looking for useful Playbooks.
(*My Hubspot is in Portuguese, but the word Deal is definitely contained in the default example Playbook)