Perhaps you should try some spelling variations:
"mass communication united" » "mass telecommunication united", "maps communication united"
"c's communication israel" » "c's communication issues", "c's communication iran", "c's communication iraq", "lea's communication israel", "class communication israel", "les communications israel"
"out migration history" » "net migration history", "2 migration history", "3 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 united") OR ("c's communication israel"))) OR ("out migration history"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"mass communication united\") OR (\"c's communication israel\"))) OR (\"out migration history\"))".
• Removing quotes may allow a broader search: (((( mass communication united ) OR ( c's communication israel ))) OR ( out migration history )).
• Adding a wildcard symbol may retrieve word variants: (((("mass communication united") OR ("c's communication israel"))) OR ("out migration history"))*.