Perhaps you should try some spelling variations:
proactive distributed » reactive distributed, adaptive distributed, practical distributed
systems recent » systems report
array formats » array format, assay formats, array formulas
array imaging » arrays imaging, airway imaging, ray imaging
array using » arrays using

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

• Performing a fuzzy search may retrieve terms with similar spellings: proactive distributed systems recent ((((array formats) or (array imaging))) or (array using))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: proactive distributed systems recent ((((array formats) OR (array imaging))) OR (array using)).
• Adding a wildcard symbol may retrieve word variants: proactive distributed systems recent ((((array formats) or (array imaging))) or (array using))*.