Perhaps you should try some spelling variations:
communication conversion » communication conversation, communications convention, communication cohesion
david editor » david victor, david edgar, david eitle
david parker » david payne, david parra
david pearce » david earl, david payne, david parra
basic linear » quasi linear, basic life

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication conversion ((((david editor) or (david parker))) or (david pearce)) basic linear~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication conversion ((((david editor) OR (david parker))) OR (david pearce)) basic linear.
• Adding a wildcard symbol may retrieve word variants: communication conversion ((((david editor) or (david parker))) or (david pearce)) basic linear*.