Perhaps you should try some spelling variations:
"re communication history" » "re telecommunication history", "re communication sector", "re communication theory", "de communication history", "true communication history", "une communication history"
"data communication issues" » "data community issues", "data communication india", "data communication united", "data communications issues"
"eu cooperation studies" » "eu cooperation series", "eu cooperation sources", "eu cooperation implies", "et cooperation studies", "2 cooperation studies", "la cooperation studies"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("re communication history") or ((("data communication issues") or ("eu cooperation studies"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("re communication history") OR ((("data communication issues") OR ("eu cooperation studies"))))*.
• Removing quotes may allow a broader search: (( re communication history ) or ((( data communication issues ) or ( eu cooperation studies ))))*.