Perhaps you should try some spelling variations:
"its decolonization from" » "its decolonisation from", "its decolonization africa", "its decolonization across", "its colonization from", "_ decolonization from", "box decolonization from"
"re colonization failed" » "re colonization still", "re organizations failed", "pro colonization failed", "_ colonization failed", "jews colonization failed"
"city cooperation history" » "city corporation history", "city federation history", "china cooperation history", "city corporations history"

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

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