Perhaps you should try some spelling variations:
"its communication issues" » "its community issues", "its communication india", "its communication united", "nets communication issues", "c's communication issues", "mass communication issues"
"its cooperation history" » "its corporation history", "its federation history", "city cooperation history", "et cooperation history"
"de cooperation still" » "de cooperation scale", "de cooperation state", "de cooperation studies", "2 cooperation still", "trade cooperation still", "area cooperation still"

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