Perhaps you should try some spelling variations:
using dimensionless » using dimensionality, design dimensionless, using dimensional
information spaces » information sources, information series, information services
array forming » array format, array formats, array string
spaces using » space using, surfaces using
array arcing » array probing, array sharing, array using
array fermi » array format

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• Performing a fuzzy search may retrieve terms with similar spellings: information spaces using dimensionless ((((array forming) OR (array arcing))) OR (array fermi))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "information spaces using dimensionless ((((array forming) OR (array arcing))) OR (array fermi))".
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