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"
"jews cooperation series" » "jews cooperation theories", "jews cooperation sources", "jews cooperation studies", "de cooperation series", "et cooperation series", "eu cooperation series"
"_ federation history" » "_ migration history", "_ federalism history", "_ federated history"

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 ("jews cooperation series"))) or ("_ federation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("its communication issues") OR ("jews cooperation series"))) OR ("_ federation history"))*.
• Removing quotes may allow a broader search: (((( its communication issues ) or ( jews cooperation series ))) or ( _ federation history ))*.