Peculiarly when you web search the english name of this directive “campaign against occult doctrines and so-called occult sciences” (i added nazi at the front too) you get only one obscure book result, and every other result is just pages filled with nonsense about how nazis were secret occultists. but if you search using the german term you get many results: aktion gegen geheimlehrenund soge-nannte geheimwissenschaften