Perhaps you should try some spelling variations:
communication cohesion » communication collections, communication control, communication cost
radical extensions » practical extensions, canonical extensions, spatial extensions
cohesion radical » diversion radical, design radical, version radical
broad line » broad mite, broad ice
read line » read like, read one
real line » real 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 cohesion radical extensions ((((read line) or (real line))) or (broad line))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication cohesion radical extensions ((((read line) OR (real line))) OR (broad line)).
• Adding a wildcard symbol may retrieve word variants: communication cohesion radical extensions ((((read line) or (real line))) or (broad line))*.