Perhaps you should try some spelling variations:
"nets communication issues" » "nets community issues", "nets communication india", "nets communication united", "lea's communication issues", "mass communication issues", "c's communication issues"
"its communication iran" » "its communication iraq", "its communication ireland", "its communication brands", "c's communication iran", "mass communication iran", "les communications iran"
"_ federation history" » "_ migration history", "_ federalism history", "_ federated history"

Try widening your search to All Fields.

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