Perhaps you should try some spelling variations:
"_ decolonization africa" » "_ democratization africa", "decolonization _ africa"
"its organization history" » "its organization theory", "arts organization history", "dis organization history", "us organization history"
"its cooperation history" » "its corporation history", "its federation history", "city cooperation history", "et cooperation history"

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

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