Perhaps you should try some spelling variations:
"class communication israel" » "class communication issues", "class communication iran", "class communication iraq", "mass communication israel", "plans communication israel", "crisis communication israel"
"u.s communication india" » "u.s communication media", "u.s communications media", "u.s communications india", "2.3 communication india", "3.2 communication india"
"its federation history" » "its migration history", "les federations history", "_ federation history", "3 federation history"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("u.s communication india") OR ("class communication israel"))) OR ("its federation history"))~.
• Removing quotes may allow a broader search: (((( u.s communication india ) or ( class communication israel ))) or ( its federation history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("u.s communication india") or ("class communication israel"))) or ("its federation history"))*.