Perhaps you should try some spelling variations:
"et cooperations history" » "et cooperation history", "et corporations history", "et operaciones history", "et cooperatives history", "eu cooperation history"
"mass communication iraq" » "mass communication iran", "mass communication israel", "mass communication italy", "maps communication iraq"
"its community issues" » "icts community issues", "city community issues", "arts community issues"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("its community issues") or ("mass communication iraq"))) or ("et cooperations history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("its community issues") OR ("mass communication iraq"))) OR ("et cooperations history")).
• Removing quotes may allow a broader search: (((( its community issues ) or ( mass communication iraq ))) or ( et cooperations history )).
• Adding a wildcard symbol may retrieve word variants: (((("its community issues") or ("mass communication iraq"))) or ("et cooperations history"))*.