Perhaps you should try some spelling variations:
unis administration » unix administration, his administration, its administration
csf administration » self administration, union administration
trf administration » tariff administration, trade administration, self administration
xgreat britain » great britain, zgreat britain, great brittain
des colonies » her colonies, _ colonies
2f colonies » _ colonies, p colonies, et 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: %xgreat britain %((2f colonies) OR (des colonies)) %((((csf administration) OR (unis administration))) OR (trf administration))%22.
• Adding a wildcard symbol may retrieve word variants: %xgreat britain %((2f colonies) or (des colonies)) %((((csf administration) or (unis administration))) or (trf administration))%22*.