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

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 ("businessman political communication"))))~.
• Removing quotes may allow a broader search: (( ((((business practice) OR (business politics))) or (business perspective)) communication ) or ((( business political 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 ("businessman political communication"))))*.