Perhaps you should try some spelling variations:
"1945 decolonization africa" » "1945 democratization africa", "_ decolonization africa", "4.4 decolonisation africa", "box decolonization africa"
"re decolonization islam" » "re decolonization from", "re decolonization _", "re colonization israel", "_ decolonization islam", "re colonization islam", "box decolonization islam"
"re communication israel" » "re communication issues", "re communication iran", "re communication iraq", "de communication israel", "true communication israel", "une communication israel"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("re decolonization islam") or ("1945 decolonization africa"))) or ("re communication israel"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("re decolonization islam") OR ("1945 decolonization africa"))) OR ("re communication israel")).
• Removing quotes may allow a broader search: (((( re decolonization islam ) or ( 1945 decolonization africa ))) or ( re communication israel )).
• Adding a wildcard symbol may retrieve word variants: (((("re decolonization islam") or ("1945 decolonization africa"))) or ("re communication israel"))*.