Perhaps you should try some spelling variations:
"c's communication issues" » "c's community issues", "c's communication india", "c's communication united", "lea's communication issues", "class communication issues", "mass communication issues"
"city cooperation history" » "city corporation history", "city federation history", "china cooperation history", "city corporations history"
"nets communication iraq" » "lea's communication iraq", "mass communication iraq", "les communications iraq", "nets communication iran", "nets communication israel", "nets communication italy"

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: (((("c's communication issues") or ("nets communication iraq"))) or ("city cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("c's communication issues") OR ("nets communication iraq"))) OR ("city cooperation history")).
• Removing quotes may allow a broader search: (((( c's communication issues ) or ( nets communication iraq ))) or ( city cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((("c's communication issues") or ("nets communication iraq"))) or ("city cooperation history"))*.