The search function is not thaaat bad. It’s just a bit broken, you have to be specific and you can only use nouns and verbs, otherwise it messes up the search.
I suggest you start searching certain basic terms (like evocation, invocation, visualization, meditation, chakra work, energy work, spirit’s name experience, spirit’s name work, spirit’s name working) and then limiting it by year and category.
This forum exists since 2012, but one could only view it after registering, so it wasn’t as cluttered with redundant/repetitive threads as it is now. According to Lady Eva, only in 2017 that it was possible to view it without registering.
This is what I found when I searched for “evocation” and limited it to show threads posted before August 2013 in the Spirits, Evocation and Possession category: