Perhaps you should try some spelling variations:
communication channel » communication channels, communication challenges
communication case » communication channels, communication culture
based dimensions » based dimension, basic dimensions, based dimensioning
dimensions does » dimensions des, dimensions forces, dimensions doing
does top » does too, does tmt

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((communication channel) or (communication case)) based dimensions does top~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((communication channel) OR (communication case)) based dimensions does top.
• Adding a wildcard symbol may retrieve word variants: ((communication channel) or (communication case)) based dimensions does top*.