Perhaps you should try some spelling variations:
pressure theories » pressure therapies, pressure theory, measure theories
clarenoon pressss » clarenoon press, clarendon press
pressure series » pressure sores, pressure surges, pressure studies
pressss series » processes series
clarendon pre » clarendon press, clarendon r, clarendon sprat
pre series » price series, page series, core series

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( clarendon pre series ) OR ((( clarendon ((pressure series) OR (pressure theories)) ) OR ( clarenoon pressss series ))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( clarendon pre series ) or ((( clarendon ((pressure series) OR (pressure theories)) ) or ( clarenoon pressss series ))))*".