Perhaps you should try some spelling variations:
self administration » welfare administration
trf administration » csf administration, tariff administration, trade administration
2f administration » csf administration, delf administration, seif administration
22great britain » great britain, xgreat britain, zgreat britain
les colonies » des colonies, her colonies, _ 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: "%22great britain %((p colonies) OR (les colonies)) %((((2f administration) OR (self administration))) OR (trf administration))%22".
• Adding a wildcard symbol may retrieve word variants: %22great britain %((p colonies) OR (les colonies)) %((((2f administration) OR (self administration))) OR (trf administration))%22*.