Perhaps you should try some spelling variations:
different observation » different observations, different conservation, different preservation
innovation functions » innervation function, innovation definitions, innovation conditions
functions different » functions difference, functions differential, cations different
array imaging » arrays imaging, airway imaging, ray imaging
array string » array strong, arrays strings, array sharing
array long » array along, arrays long, array strong

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

• Performing a fuzzy search may retrieve terms with similar spellings: innovation functions different observation ((((array long) OR (array imaging))) OR (array string))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "innovation functions different observation ((((array long) OR (array imaging))) OR (array string))".
• Adding a wildcard symbol may retrieve word variants: innovation functions different observation ((((array long) OR (array imaging))) OR (array string))*.