Perhaps you should try some spelling variations:
"its cooperation history" » "its corporation history", "its federation history", "city cooperation history", "et cooperation history"
"war decolonization _" » "_ decolonization _", "box decolonization _", "1945 decolonization _", "war colonization _"
"its colonization still" » "its colonization failed", "its colonization israel", "its colonization songs", "anti colonization still", "jews colonization still", "mars colonization still"

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

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