Perhaps you should try some spelling variations:
"_ decolonization failed" » "_ colonization failed", "_ decolonization case", "_ decolonization africa", "decolonization _ failed"
"re cooperation history" » "re corporation history", "re federation history", "de cooperation history", "area cooperation history", "rate cooperation history"
"re colonization from" » "re decolonization from", "re decolonisation from", "re colonization french", "pro colonization from", "_ colonization from", "jews colonization from"

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