Perhaps you should try some spelling variations:
communication data » communication design, communication during
data decision » a decision
david mackey » david lockey, david mckay, david manthey
david manley » david stanley, david bailey, david morley
david hacker » david parker, david walker, david banker

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication communication data decision ((((david mackey) OR (david manley))) or (david hacker))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication communication data decision ((((david mackey) OR (david manley))) OR (david hacker))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication communication data decision ((((david mackey) OR (david manley))) or (david hacker))*".