Perhaps you should try some spelling variations:
"1945 decolonization africa" » "1945 democratization africa", "_ decolonization africa", "4.4 decolonisation africa", "box decolonization africa"
"_ communication israel" » "_ communication issues", "_ communication iran", "_ communication iraq"
"re colonization history" » "re communication history", "re organization history", "re cooperation history", "pro colonization history", "_ colonization history", "jews colonization history"

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: (((("1945 decolonization africa") OR ("_ communication israel"))) OR ("re colonization history"))~.
• Removing quotes may allow a broader search: (((( 1945 decolonization africa ) or ( _ communication israel ))) or ( re colonization history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("1945 decolonization africa") or ("_ communication israel"))) or ("re colonization history"))*.