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

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