Perhaps you should try some spelling variations:
"mass communication israel" » "mass communication iran", "mass communication iraq", "mass telecommunication israel", "maps communication israel"
"nets communication issues" » "nets community issues", "nets communication india", "nets communication united", "lea's communication issues", "c's communication issues", "les communications issues"
"4 migration history" » "2 migration history", "3 migration history", "der 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: (((("nets communication issues") or ("mass communication israel"))) or ("4 migration history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nets communication issues") OR ("mass communication israel"))) OR ("4 migration history")).
• Removing quotes may allow a broader search: (((( nets communication issues ) or ( mass communication israel ))) or ( 4 migration history )).
• Adding a wildcard symbol may retrieve word variants: (((("nets communication issues") or ("mass communication israel"))) or ("4 migration history"))*.