The problematic (well, problematic for me!) section starts at 18:40:00.
The content is as follows:
But 50 years ago, Thay was in ?, north east of Thailand, in a retreat for young people, and located in an area called ? near a very famous temple called ? and Thay was staying in a hut close to a cascade, to a big creek, and always the sound of water falling!
Thank you to anyone who can assist with the question marks,
Regards,
Matthew