Perhaps you should try some spelling variations:
communication concepts » communication circuits, communication congresses, communication channels
basic dimensions » based dimension, pacific dimensions, design dimensions
concepts basic » concepts cases, concepts case
larger spaces » larger species, large space, larger scale
use spaces » tuple spaces, phase spaces, gauge 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 basic dimensions ((((larger spaces) or (use spaces))) or (large scale))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts basic dimensions ((((larger spaces) OR (use spaces))) OR (large scale)).
• Adding a wildcard symbol may retrieve word variants: communication concepts basic dimensions ((((larger spaces) or (use spaces))) or (large scale))*.