Perhaps you should try some spelling variations:
moore positional » aware positional, whole positional, case positional
astronomy series » astronomy sergey, gastronomy services, astronomy survives
pure positional » aware positional, pure conditional, pure rotational

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "the patrick ((moore positional) OR (pure positional)) astronomy series".
• Adding a wildcard symbol may retrieve word variants: the patrick ((moore positional) OR (pure positional)) astronomy series*.