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 surface » free surface
gauge spaces » large space, safe spaces
use spaces » tuple spaces, phase spaces, whose 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 ((((gauge spaces) or (use spaces))) or (large surface))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications convention based dimension ((((gauge spaces) OR (use spaces))) OR (large surface)).
• Adding a wildcard symbol may retrieve word variants: communications convention based dimension ((((gauge spaces) or (use spaces))) or (large surface))*.