Perhaps you should try some spelling variations:
"its cooperation history" » "its corporation history", "its federation history", "city cooperation history", "et cooperation history"
"_ decolonisation from" » "_ decolonization from", "_ decolonisation _", "_ decolonisation 1"
"mars colonization still" » "mars colonization failed", "mars colonization israel", "mars colonization songs", "mrsa colonization still", "its colonization still", "jews colonization still"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"_ decolonisation from\") OR (\"mars colonization still\"))) OR (\"its cooperation history\"))~".
• Removing quotes may allow a broader search: (((( _ decolonisation from ) OR ( mars colonization still ))) OR ( its cooperation history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ decolonisation from") OR ("mars colonization still"))) OR ("its cooperation history"))*.