Perhaps you should try some spelling variations:
authorization authentication » information authentication
clustering multidimensional » using multidimensional
authentication clustering » authentication using, authentication cheating, authentication comparing
array profiling » array processing, microarray profiling
array string » array strong, arrays strings, array sharing

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

• Performing a fuzzy search may retrieve terms with similar spellings: authorization authentication clustering multidimensional ((array string) OR (array profiling))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "authorization authentication clustering multidimensional ((array string) OR (array profiling))".
• Adding a wildcard symbol may retrieve word variants: authorization authentication clustering multidimensional ((array string) OR (array profiling))*.