Perhaps you should try some spelling variations:
information robots » information problems, information problem, information report
surface diffusion » state diffusion
array processing » dairy processing, query processing
robots surface » rabbits surface, riblets surface, foods surface
array probing » arrays probing, assay probing, array 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: information robots surface diffusion ((array string) or (((array probing) or (array processing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information robots surface diffusion ((array string) OR (((array probing) OR (array processing)))).
• Adding a wildcard symbol may retrieve word variants: information robots surface diffusion ((array string) or (((array probing) or (array processing))))*.