Perhaps you should try some spelling variations:
decolonization from » decolonisation from, decolonization africa, decolonization across
cooperation history » corporation history, federation history
re decolonization » _ decolonization, re colonization, box decolonization
re cooperation » de cooperation, area cooperation, rate cooperation

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: "(((( re decolonization from ) OR ( decolonization _ israel ))) OR ( re cooperation history ))~".
• Adding a wildcard symbol may retrieve word variants: (((( re decolonization from ) OR ( decolonization _ israel ))) OR ( re cooperation history ))*.