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"
"re cooperation history" » "re corporation history", "re federation history", "de cooperation history", "area cooperation history", "rate cooperation history"
"_ colonization still" » "_ colonization failed", "_ colonization israel", "_ colonization songs", "_ decolonization still", "decolonization _ still"

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 still"))) OR ("re cooperation history"))~.
• Removing quotes may allow a broader search: (((( box decolonization across ) or ( _ colonization still ))) or ( re cooperation history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("box decolonization across") or ("_ colonization still"))) or ("re cooperation history"))*.