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

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