I wrote this up as a reference, and thought I would share. I'll leave it as a Word document (3 pages), so feel free to edit for your own purposes. It is a bit too much for most users, so not a great quick reference. For that it would be better reduced to one page, which I may do at some point.
There could be mistakes, but I have run quite a few test searches to figure it out.
I covered search operators and some idiosyncrasies of EPDM and Windows searches.
Hope it helps.
[originally posted Aug 4, 2015]