Perhaps you should try some spelling variations:
"jews communication history" » "jews telecommunication history", "jews communication sector", "jews communication theory", "nets communication history", "lea's communication history", "mass communication history"
"pro communication iraq" » "pro communication iran", "pro communication israel", "pro communication italy", "prone communication iraq", "ngo communication iraq", "proper communication iraq"
"mars cooperation scale" » "mars cooperation case", "mars cooperation state", "mars cooperation sara", "early cooperation scale", "area cooperation scale", "arab cooperation scale"

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

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