Perhaps you should try some spelling variations:
2f administration » csf administration, trf administration, self administration
xgreat britain » great brittain, great britiain, creat britain
great britains » great britain's, great brittain, great britian
zgreat britain » great brittain, great britiain, creat britain
great britaine » great brittaine, great britain's, great brittain

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 (great britains))) OR (((zgreat britain) OR (great britaine))))) OR (great britain)) %_ colonies %2f administration%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((((xgreat britain) or (great britains))) or (((zgreat britain) OR (great britaine))))) or (great britain)) %_ colonies %2f administration%22*".