Perhaps you should try some spelling variations:
"class communication israel" » "class communication issues", "class communication iran", "class telecommunication israel", "mass communication israel", "plans communication israel", "crisis communication israel"
"city cooperation history" » "city corporation history", "city federation history", "china cooperation history", "city corporations history"
"its communication iraq" » "its communication iran", "its communication italy", "its communication ideas", "nets communication iraq", "c's communication iraq", "mass communication iraq"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("its communication iraq") or ("class communication israel"))) or ("city cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("its communication iraq") OR ("class communication israel"))) OR ("city cooperation history")).
• Removing quotes may allow a broader search: (((( its communication iraq ) or ( class communication israel ))) or ( city cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((("its communication iraq") or ("class communication israel"))) or ("city cooperation history"))*.