Perhaps you should try some spelling variations:
political activities » political activity, political activists, biological activities
critical activities » criminal activities, critical facilities, physical activities
medical activities » technical activities, physical activities, social activities
fiscal activities » musical activities, vital activities, financial activities

Try widening your search to All Fields.

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: %((((fiscal activities) OR (((critical activities) OR (political activities))))) OR (medical activities))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((fiscal activities) or (((critical activities) OR (political activities))))) or (medical activities))%22".
• Adding a wildcard symbol may retrieve word variants: %((((fiscal activities) or (((critical activities) OR (political activities))))) or (medical activities))%22*.