German Kindle Ebooks

Follow these instructions from ebookfriendly.com. So for finding all free Trotzkopf books I used the following Google query:

intitle:kindle site:amazon.com "German edition" trotzkopf

intitle:kindle site:amazon.com "German edition" free urheberrechtsfreie (open source books)

Vi

Substitute: :%s/orig/sub/g