Perhaps you should try some spelling variations:
"box decolonization across" » "box decolonization africa", "box decolonization case", "box decolonization from", "_ decolonization across", "war decolonization across", "1945 decolonization across"
"_ colonization failed" » "_ colonization still", "_ organizations failed", "_ decolonization failed", "decolonization _ failed"
"de cooperation history" » "de corporation history", "de federation history", "2 cooperation history", "trade cooperation history", "area cooperation 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: (((("box decolonization across") OR ("_ colonization failed"))) OR ("de cooperation history"))~.
• Removing quotes may allow a broader search: (((( box decolonization across ) or ( _ colonization failed ))) or ( de cooperation history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("box decolonization across") or ("_ colonization failed"))) or ("de cooperation history"))*.