Talvez debería tentar con algunhas variantes ortográficas:
communications circuits » communication circuits, communications concepts
element dimensions » elements dimensions, relevant dimensions, equipment dimensions
circuits element » circuits elements, circuit element, circuit elements
tuple spaces » tuple space, triple space
type spaces » state spaces
safe spaces » state spaces, shape spaces, scale spaces

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

• Performing a fuzzy search may retrieve terms with similar spellings: communications circuits element dimensions ((((tuple spaces) or (type spaces))) or (safe spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications circuits element dimensions ((((tuple spaces) OR (type spaces))) OR (safe spaces)).
• Adding a wildcard symbol may retrieve word variants: communications circuits element dimensions ((((tuple spaces) or (type spaces))) or (safe spaces))*.