Perhaps you should try some spelling variations:
trf administration » csf administration, tariff administration, trade administration
2f administration » csf administration, self administration, delf administration
les colonies » des colonies, her colonies
et colonies » her colonies, des colonies, ant colonies
_ colonies » _ colonial

Try widening your search to All Fields.

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: %great britain %((((les colonies) OR (_ colonies))) OR (et colonies)) %((2f administration) OR (trf administration))%22.
• Adding a wildcard symbol may retrieve word variants: %great britain %((((les colonies) or (_ colonies))) or (et colonies)) %((2f administration) or (trf administration))%22*.