Perhaps you should try some spelling variations:
"nets communication issues" » "nets community issues", "nets communication india", "nets communication united", "lea's communication issues", "c's communication issues", "les communications issues"
"mass communication iraq" » "mass communication iran", "mass communication israel", "mass communication italy", "maps communication iraq"
"u.s migration history" » "mass migration history", "does migration history", "1 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 iraq") or ("nets communication issues"))) or ("u.s migration history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mass communication iraq") OR ("nets communication issues"))) OR ("u.s migration history")).
• Removing quotes may allow a broader search: (((( mass communication iraq ) or ( nets communication issues ))) or ( u.s migration history )).
• Adding a wildcard symbol may retrieve word variants: (((("mass communication iraq") or ("nets communication issues"))) or ("u.s migration history"))*.