Perhaps you should try some spelling variations:
xgreat britain » great brittain, great britains, great britaine
zgreat britain » great brittain, great britains, great britaine
great britiain » great britian, great brittain, great britains

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: %((((xgreat britain) OR (zgreat britain))) OR (((great britiain) OR (great britain))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((xgreat britain) OR (zgreat britain))) or (((great britiain) or (great britain))))%22".
• Adding a wildcard symbol may retrieve word variants: %((((xgreat britain) OR (zgreat britain))) or (((great britiain) or (great britain))))%22*.