Perhaps you should try some spelling variations:
communication second » communications second, communication section, communication sound
second three » second tree, beyond three, second free
scale spaces » scale space, sample spaces
tuple spaces » tuple space, type spaces, triple space
scaled space » scale space, shared space, enabled space

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication second three dimensional ((((scale spaces) or (tuple spaces))) or (scaled space))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication second three dimensional ((((scale spaces) OR (tuple spaces))) OR (scaled space)).
• Adding a wildcard symbol may retrieve word variants: communication second three dimensional ((((scale spaces) or (tuple spaces))) or (scaled space))*.