Perhaps you should try some spelling variations:
"coca cooperation history" » "coca corporation history", "coca federation history", "local cooperation history", "social cooperation history", "china cooperation history"
"ii communication iran" » "ii communication iraq", "ii communication ireland", "ii communication brands", "de communication iran", "3 communication iran", "4 communication iran"
"_ colonization still" » "_ colonization failed", "_ colonization israel", "_ colonization songs", "_ decolonization still", "decolonization _ still"

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

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