Perhaps you should try some spelling variations:
communication context » communication contexts, communication content, communicative context
comments dimension » community dimension, elements dimensions, comments discussion
context comments » context concepts, context content, content components
tuple spaces » tuple space, type spaces, triple space
safe spaces » state spaces, shape spaces, scale spaces
use spaces » phase spaces, gauge 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: communication context comments dimension ((tuple spaces) or (((safe spaces) or (use spaces))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication context comments dimension ((tuple spaces) OR (((safe spaces) OR (use spaces)))).
• Adding a wildcard symbol may retrieve word variants: communication context comments dimension ((tuple spaces) or (((safe spaces) or (use spaces))))*.