Talvez debería tentar con algunhas variantes ortográficas:
communication injection » communication interaction, communication connection, communication infectious
injection method » injections methods, projection method, detection method
method diffusion » methods diffusion, methane diffusion, method discussion
gauge spaces » large space, safe spaces
whose spaces » phase spaces, shape spaces, whose race
use spaces » tuple spaces, phase spaces

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: communication injection method diffusion ((gauge spaces) OR (((use spaces) OR (whose spaces))))~.
• Adding a wildcard symbol may retrieve word variants: communication injection method diffusion ((gauge spaces) or (((use spaces) or (whose spaces))))*.