Perhaps you should try some spelling variations:
surface diffusion » state diffusion
array processing » dairy processing, query processing
information set » information sheet, information asset, information sheets
array sharing » arrays bearing, array imaging, way sharing
array string » array strong, arrays strings, array forming
set surface » bet surface, net surface, bent surface

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

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