Perhaps you should try some spelling variations:
information agents » information age, information access, information about
surface diffusion » state diffusion
array processing » dairy processing, query processing
agents surface » pigments surface, agents surgicel, aspects surface
array string » array strong, arrays strings, array sharing
array along » arrays long, array arcing, array paving

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

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