Perhaps you should try some spelling variations:
"class communication israel" » "class communication iran", "class communication iraq", "class telecommunication israel", "mass communication israel", "plans communication israel", "crisis communication israel"
"nets communication issues" » "nets community issues", "nets communication india", "nets communication united", "lea's communication issues", "mass communication issues", "c's communication issues"
"does migration history" » "mass migration history", "u.s migration history", "workers migration history"

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

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