Perhaps you should try some spelling variations:
communication concepts » communication circuits, communication congresses, communication channels
rice dimensional » five dimensional, nine dimensional, mixed dimensional
shared dspaces » shared spaces, shared space, shared places
sample dspaces » sample spaces, sample space
concepts rice » concepts role, concept price, concepts rac
dspaces » ddspaces
space » dspace

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 rice dimensional ((shared dspaces) or (((sample dspaces) or (scale space))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts rice dimensional ((shared dspaces) OR (((sample dspaces) OR (scale space)))).
• Adding a wildcard symbol may retrieve word variants: communication concepts rice dimensional ((shared dspaces) or (((sample dspaces) or (scale space))))*.