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"
"its communication iran" » "its communication ireland", "its communication brands", "its communication france", "nets communication iran", "c's communication iran", "les communications iran"
"mass communication iraq" » "mass communication israel", "mass communication italy", "mass communication ideas", "maps communication iraq"

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

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