Perhaps you should try some spelling variations:
communications convention » communications connections, communication connection, communication conversation
convention based » contention based, conversion based, conversation based
based dimension » based dispersion, basic dimensions, based extension
large sparses » large parsed, large spaces, large classes
large sparse » large scale
use spaces » tuple spaces, phase spaces, gauge spaces

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

• Performing a fuzzy search may retrieve terms with similar spellings: communications convention based dimension ((((large sparses) or (use spaces))) or (large sparse))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications convention based dimension ((((large sparses) OR (use spaces))) OR (large sparse)).
• Adding a wildcard symbol may retrieve word variants: communications convention based dimension ((((large sparses) or (use spaces))) or (large sparse))*.