Perhaps you should try some spelling variations:
"businessman political communication" » "businessmen political communication", "business politics communication"
business perspective » outline perspective
"business political communication" » "business politics communication", "businessmen political communication", "business policy communication"
business practice » business practices, business politics

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("((business practice) or (business perspective)) communication") OR ((("business political communication") OR ("businessman political communication"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"((business practice) or (business perspective)) communication\") or (((\"business political communication\") OR (\"businessman political communication\"))))~".
• Removing quotes may allow a broader search: (( ((business practice) or (business perspective)) communication ) or ((( business political communication ) OR ( businessman political communication ))))~.
• Adding a wildcard symbol may retrieve word variants: (("((business practice) or (business perspective)) communication") or ((("business political communication") OR ("businessman political communication"))))*.