Perhaps you should try some spelling variations:
"et cooperation history" » "et corporation history", "et federation history", "et cooperations history", "eu cooperation history", "2 cooperation history"
"_ colonization failed" » "_ colonization still", "_ organizations failed", "_ decolonization failed", "decolonization _ failed"
"its cooperation still" » "its cooperation scale", "its cooperation state", "its cooperation studies", "city cooperation still", "its corporation still", "its operation still"

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

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