"by using the dogpile search machine" is the qick but not very informative answer. Actually I knew that site existed since I had found it when I was searching for "Changing your demeanour". When I first saw your request for "Mo Ghile Mear" it tried Dogpile for I knew there was a site with all the lyrics from the Chieftains CD and found nothing but the link I displayed in my former mail. Yesterday I refound it by chance when I was looking for "Long black veil".
Dulcimer, there is a request for "Long black veil". In there, you'll find the link.