Talvez debería tentar con algunhas variantes ortográficas:
communications condition » communicational conditions, communications convention, communications connections
based extraction » based interaction, phase extraction, based education
range spaces » gauge spaces, range states, large spaces
tuple spaces » tuple space, type spaces, triple space
large space » large sparse, large scale, large surface

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

• Performing a fuzzy search may retrieve terms with similar spellings: communications condition based extraction ((((range spaces) or (tuple spaces))) or (large space))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications condition based extraction ((((range spaces) OR (tuple spaces))) OR (large space)).
• Adding a wildcard symbol may retrieve word variants: communications condition based extraction ((((range spaces) or (tuple spaces))) or (large space))*.