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

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