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

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: "%((xgreat britain) OR (zgreat britain)) %((p colonies) OR (et colonies)) %((2f administration) OR (trf administration))%22".
• Adding a wildcard symbol may retrieve word variants: %((xgreat britain) OR (zgreat britain)) %((p colonies) OR (et colonies)) %((2f administration) OR (trf administration))%22*.