Perhaps you should try some spelling variations:
communication concepts » communication circuits, communication congresses, communication channels
some dimensions » women dimensions, core dimensions, more dimensions
concepts some » concepts sore, concepts shame, concepts simple
shared spaces » shared space, shared stocks
scale spaces » scale space, sample spaces
tuple spaces » tuple space, type spaces, triple 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 concepts some dimensions ((shared spaces) or (((scale spaces) or (tuple spaces))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts some dimensions ((shared spaces) OR (((scale spaces) OR (tuple spaces)))).
• Adding a wildcard symbol may retrieve word variants: communication concepts some dimensions ((shared spaces) or (((scale spaces) or (tuple spaces))))*.