Perhaps you should try some spelling variations:
"c's communication united" » "c's telecommunication united", "lea's communication united", "class communication united", "mass communication united"
"nets communication issues" » "nets community issues", "nets communication india", "nets communication italy", "lea's communication issues", "mass communication issues", "les communications issues"
"_ 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: (((("c's communication united") or ("nets communication issues"))) or ("_ federation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("c's communication united") OR ("nets communication issues"))) OR ("_ federation history"))*.
• Removing quotes may allow a broader search: (((( c's communication united ) or ( nets communication issues ))) or ( _ federation history ))*.