Perhaps you should try some spelling variations:
self administration » welfare administration
trf administration » csf administration, tariff administration, trade administration
2f administration » csf administration, 2.2 administration, 2.10 administration
des colonies » her colonies, _ colonies
et colonies » her colonies, les colonies, ant colonies

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