Perhaps you should try some spelling variations:
information spaces » information sources, information series, information services
array processing » dairy processing, query processing
space diffusion » state diffusion, slice diffusion, surface diffusion
spaces space » space space, spaces some
array string » array strong, arrays strings, array sharing
array arcing » array forming, array probing, 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: information spaces space diffusion ((array string) or (((array arcing) or (array processing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information spaces space diffusion ((array string) OR (((array arcing) OR (array processing)))).
• Adding a wildcard symbol may retrieve word variants: information spaces space diffusion ((array string) or (((array arcing) or (array processing))))*.