Perhaps you should try some spelling variations:
"maps communication issues" » "maps communication india", "maps communication united", "maps communication italy", "mass communication issues", "mass communications issues", "lea's communication issues"
"et cooperation history" » "et corporation history", "et federation history", "et cooperations history", "eu cooperation history", "2 cooperation history"
"its community issues" » "icts community issues", "city community issues", "arts community issues"

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

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