Perhaps you should try some spelling variations:
"_ colonization failed" » "_ colonization still", "_ organizations failed", "_ decolonization failed", "decolonization _ failed"
"coca cooperation history" » "coca corporation history", "coca federation history", "local cooperation history", "social cooperation history", "china cooperation history"
"ai communication iran" » "ai communication iraq", "ai communication ireland", "ai communication brands", "ii communication iran", "i communication iran", "de communication iran"

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

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