Perhaps you should try some spelling variations:
communication second » communications second, communication section, communication sound
tier dimensional » higher dimensional, three dimensional, lower dimensional
shared spaces » shared stocks
tuple spaces » tuple space, type spaces, triple space
shared space » sacred space, shared care

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 tier dimensional ((((shared spaces) or (tuple spaces))) or (shared space))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication second tier dimensional ((((shared spaces) OR (tuple spaces))) OR (shared space)).
• Adding a wildcard symbol may retrieve word variants: communication second tier dimensional ((((shared spaces) or (tuple spaces))) or (shared space))*.