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

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 politics))) or (business perspective)) communication") OR ((((("business political communication") OR ("business policy communication"))) OR ("businessman political communication"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"((((business practice) or (business politics))) or (business perspective)) communication\") or (((((\"business political communication\") OR (\"business policy communication\"))) or (\"businessman political communication\"))))~".
• Removing quotes may allow a broader search: (( ((((business practice) or (business politics))) or (business perspective)) communication ) or ((((( business political communication ) OR ( business policy communication ))) or ( businessman political communication ))))~.
• Adding a wildcard symbol may retrieve word variants: (("((((business practice) or (business politics))) or (business perspective)) communication") or ((((("business political communication") OR ("business policy communication"))) or ("businessman political communication"))))*.