Ability to "search" a keyword to pull up my past posts

Currently, Typefully allows us to search in our drafted posts, but it would be neat to be able to quickly type a keyword and be able to resurface posts that I've already done in the past. Especially because Twitter's native search for your own personal profile is just not reliable and it's hard to use. So it'd be neat to just be able to quickly search a keyword and then pull up all my past posts, and then I could repurpose that content when necessary.