Perhaps you should try some spelling variations:
communications convolution » communications revolution, communications evolution, communications convention
dimensions decision » dimensions vision, dimensions derivation, dimensional division
convolution method » construction method, solution method, evolution methods
dimensions session » dimensions vision, extensions session, dimensions impression

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

• Performing a fuzzy search may retrieve terms with similar spellings: communications convolution method ((dimensions decision) or (dimensions session)) level~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications convolution method ((dimensions decision) OR (dimensions session)) level.
• Adding a wildcard symbol may retrieve word variants: communications convolution method ((dimensions decision) or (dimensions session)) level*.