Perhaps you should try some spelling variations:
political sciences » political science, clinical sciences, political scientists
social scientists » social sciences
mark webber » mark weber, mark weiser, mark yeber
mr webber » mr webbe, mr webber's, mr webster

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: ((mark webber) OR (mr webber)) (((political sciences) OR (social scientists))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mark webber) OR (mr webber)) (((political sciences) or (social scientists)))".
• Adding a wildcard symbol may retrieve word variants: ((mark webber) OR (mr webber)) (((political sciences) or (social scientists)))*.