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