Perhaps you should try some spelling variations:
"re decolonization africa" » "re democratization africa", "re colonization africa", "box decolonization africa", "war decolonization africa"
"re organisation history" » "re organization history", "re organisation culture", "re organisation einer", "care organisation history", "ihre organisation history", "die organisation history"
"_ decolonization work" » "_ colonization work", "_ decolonization notes", "_ decolonization _", "decolonization _ work"

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 africa\") OR (\"_ decolonization work\"))) OR (\"re organisation history\"))~".
• Removing quotes may allow a broader search: (((( re decolonization africa ) OR ( _ decolonization work ))) OR ( re organisation history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("re decolonization africa") OR ("_ decolonization work"))) OR ("re organisation history"))*.