Perhaps you should try some spelling variations:
michael johnston » birchall johnston, michael boston, richard johnston
michael johnson » michele johnson, michael jackson, michael john
richard johnson » richard jackson

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: ((michael johnston) OR (((michael johnson) OR (richard johnson)))) (actor).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((michael johnston) or (((michael johnson) OR (richard johnson)))) (actor)".
• Adding a wildcard symbol may retrieve word variants: ((michael johnston) or (((michael johnson) OR (richard johnson)))) (actor)*.