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"
"et cooperation history" » "et corporation history", "et federation history", "et cooperations history", "eu cooperation history", "2 cooperation history"
"its communication iran" » "its communication iraq", "its communication ireland", "its communication brands", "c's communication iran", "mass communication iran", "les communications iran"

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 ("et cooperation history"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"its communication iran\") OR (\"nets communication issues\"))) OR (\"et cooperation history\"))*".
• Removing quotes may allow a broader search: (((( its communication iran ) OR ( nets communication issues ))) OR ( et cooperation history ))*.