Perhaps you should try some spelling variations:
2f administration » csf administration, trf administration, self administration
xgreat britain » zgreat britain, great brittain, great britains
des colonies » her colonies
et colonies » her colonies, les colonies, ant colonies

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 britain)) %((((_ colonies) OR (des colonies))) OR (et colonies)) %2f administration%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((xgreat britain) OR (great britain)) %((((_ colonies) or (des colonies))) or (et colonies)) %2f administration%22".
• Adding a wildcard symbol may retrieve word variants: %((xgreat britain) OR (great britain)) %((((_ colonies) or (des colonies))) or (et colonies)) %2f administration%22*.