Perhaps you should try some spelling variations:
communication concepts » communication circuits, communication congresses, communication channels
component dimensions » competency dimensions, complex dimensions, content dimensions
concepts component » concepts components, conceptual components, connected component
tuple spaces » tuple space, triple space
scale spaces » scale space, sample spaces
type spaces » state 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 component dimensions ((((tuple spaces) or (type spaces))) or (scale spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts component dimensions ((((tuple spaces) OR (type spaces))) OR (scale spaces)).
• Adding a wildcard symbol may retrieve word variants: communication concepts component dimensions ((((tuple spaces) or (type spaces))) or (scale spaces))*.