Perhaps you should try some spelling variations:
"war decolonization africa" » "war democratization africa", "_ decolonization africa", "box decolonization africa", "1945 decolonization africa"
"re cooperation history" » "re corporation history", "re federation history", "de cooperation history", "area cooperation history", "rate cooperation history"
"_ colonization work" » "_ colonization's mark", "_ colonization songs", "_ colonization _", "_ decolonization work", "decolonization _ work"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("war decolonization africa") or ("_ colonization work"))) or ("re cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("war decolonization africa") OR ("_ colonization work"))) OR ("re cooperation history"))*.
• Removing quotes may allow a broader search: (((( war decolonization africa ) or ( _ colonization work ))) or ( re cooperation history ))*.