As a workaround you can use google using the 'site:' option, for instance, say I want to look for GMU PT on this site, I can go to goole and enter:
GMU PT site:www.lawschooldiscussion.org
This will return pages with the terms GMU and PT, on them changing the search to:
"GMU PT" site:www.lawschooldiscussion.org
will return sites with the words in sequence.
I hope that this helps.