This library is in a very early stage of development and due to this there no documentation available (besides the source itself :p).
However, if you would like to have a glimpse this is what you've got to do:
from FacebookSearch import *
import pprint
try:
fbo = FacebookSearchOrder()
fbo.setKeywords('NSA')
fb = FacebookSearch(client_id='123', client_secret='I_really_do_like_spiderman_undies')
# or even: FacebookSearch(access_code='NoNeedToCreateOne')
# don't worry if it takes its time - you'll get 500 records
# (this is the maximum amount of records you're able to get from Graph API)
for info in fb.searchGraphIterable(fbo):
pprint.pprint(info)
except FacebookSearchException as e:
print(e)