Perhaps you should try some spelling variations:
"its colonization failed" » "its colonization still", "its organizations failed", "anti colonization failed", "jews colonization failed", "mars colonization failed"
"1945 decolonization _" » "_ decolonization _", "4.4 decolonisation _", "box decolonization _", "1945 colonization _"
"asian cooperation still" » "asian cooperation scale", "asian cooperation state", "asian cooperation studies"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("1945 decolonization _") or ((("asian cooperation still") or ("its colonization failed"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("1945 decolonization _") OR ((("asian cooperation still") OR ("its colonization failed"))))*.
• Removing quotes may allow a broader search: (( 1945 decolonization _ ) or ((( asian cooperation still ) or ( its colonization failed ))))*.