Hi Radiant Joy,
I have just been offering some ideas in the discussion about breathing and like you also tried to search for "reverse breathing" with no success. When I typed into the Search box above and clicked "go" I, like you, also got no results.
After looking around for a bit I realised what Shawn had meant in his reply - the search button for the forum is actually not the one in the brown bar above (that's the one for the whole site). I just noticed the blue underlined "search" link which you'll find just under the green Post Reply button above. This evidently enables you to search the forum in detail and there are, of course, a number of interesting discussions about reverse breathing which I am now going to have a read through myself too!
best wishes
Ingrid ;0)