Perhaps you should try some spelling variations:
communication concepts » communication circuits, communication congresses, communication channels
resource dimensions » resource dimension, resource decisions, resource licensing
concepts resource » concepts resources, concept resources, contexts resources
large spaces » larger spaces, large space, large scales
gauge spaces » large space, safe spaces, use spaces
scale spaces » scale space, sample spaces, tuple 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 resource dimensions ((((large spaces) or (gauge spaces))) or (scale spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication concepts resource dimensions ((((large spaces) OR (gauge spaces))) OR (scale spaces)).
• Adding a wildcard symbol may retrieve word variants: communication concepts resource dimensions ((((large spaces) or (gauge spaces))) or (scale spaces))*.