Talvez debería tentar con algunhas variantes ortográficas:
spaces extension » spaces extensions, states extension, surfaces extension
information use » information using
array imaging » arrays imaging, airway imaging, ray imaging
array forming » array format, array arcing, array fermi
array string » array strong, arrays strings, array sharing
use spaces » tuple spaces, phase spaces, gauge spaces

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

• Performing a fuzzy search may retrieve terms with similar spellings: information use spaces extension ((((array imaging) or (array string))) or (array forming))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information use spaces extension ((((array imaging) OR (array string))) OR (array forming)).
• Adding a wildcard symbol may retrieve word variants: information use spaces extension ((((array imaging) or (array string))) or (array forming))*.