Perhaps you should try some spelling variations:
"les communication series" » "les communication services", "les communication systems", "les communication skills", "les communications series", "nets communication series", "c's communication series"
"lea's communication issues" » "lea's community issues", "lea's communication india", "lea's communication united", "mass communication issues", "crisis communication issues", "leadership communication issues"
"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 series") or ("lea's communication issues"))) or ("its cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("les communication series") OR ("lea's communication issues"))) OR ("its cooperation history")).
• Removing quotes may allow a broader search: (((( les communication series ) or ( lea's communication issues ))) or ( its cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((("les communication series") or ("lea's communication issues"))) or ("its cooperation history"))*.