Perhaps you should try some spelling variations:
"africa colonization israel" » "arrival colonization israel", "africa cooperation israel", "africa organization israel", "africa communication israel", "africa colonization still", "africa colonization history"
"mass communication iran" » "mass communication ireland", "mass communication brands", "mass communication france", "maps communication iran"
"its communication iraq" » "its communication israel", "its communication italy", "its communication ideas", "nets communication iraq", "c's communication iraq", "les communications 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: (((("mass communication iran") OR ("its communication iraq"))) OR ("africa colonization israel"))~.
• Removing quotes may allow a broader search: (((( mass communication iran ) or ( its communication iraq ))) or ( africa colonization israel ))~.
• Adding a wildcard symbol may retrieve word variants: (((("mass communication iran") or ("its communication iraq"))) or ("africa colonization israel"))*.