Perhaps you should try some spelling variations:
"jews communication israel" » "jews communication iran", "jews communication iraq", "jews telecommunication israel", "nets communication israel", "lea's communication israel", "mass communication israel"
"data communication issues" » "data community issues", "data communication india", "data communication united", "data communications issues"
"et cooperations state" » "et cooperation state", "et operations state", "et cooperation strategy", "et cooperatives state", "eu cooperation state"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("jews communication israel") or ((("data communication issues") or ("et cooperations state"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("jews communication israel") OR ((("data communication issues") OR ("et cooperations state"))))*.
• Removing quotes may allow a broader search: (( jews communication israel ) or ((( data communication issues ) or ( et cooperations state ))))*.