Perhaps you should try some spelling variations:
communication controllers » communication controller, communication controlling, communication control
controllers current » control current, control recurrent, controllers agent
current dimensions » current directions, current diversion, content dimensions
tuple spaces » tuple space, triple space
type spaces » state spaces
use spaces » phase spaces, gauge spaces, whose 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 controllers current dimensions ((((tuple spaces) or (type spaces))) or (use spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication controllers current dimensions ((((tuple spaces) OR (type spaces))) OR (use spaces)).
• Adding a wildcard symbol may retrieve word variants: communication controllers current dimensions ((((tuple spaces) or (type spaces))) or (use spaces))*.