Talvez debería tentar con algunhas variantes ortográficas:
communication concepts » communication circuits, communication congresses, communication channels
comment dimension » community dimension, content dimensions, component dimensions
concepts comment » concepts comments, concept comment, concepts common
tuple spaces » tuple space, type spaces, triple space
gauge spaces » large space, use spaces
safe spaces » state spaces, shape spaces, scale 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 concepts comment dimension ((tuple spaces) or (((gauge spaces) OR (safe spaces))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts comment dimension ((tuple spaces) OR (((gauge spaces) OR (safe spaces)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication concepts comment dimension ((tuple spaces) or (((gauge spaces) OR (safe spaces))))".
• Adding a wildcard symbol may retrieve word variants: communication concepts comment dimension ((tuple spaces) or (((gauge spaces) OR (safe spaces))))*.