Perhaps you should try some spelling variations:
surface diffusion » state diffusion
information gis » information gain, information gaps, information grid
array forming » array format, array fermi, array formats
array arcing » array probing, array sharing, array using
array string » array strong, arrays strings, array sharing
gis surface » gas surface, gibbs surface, axis 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 gis surface diffusion ((((array arcing) or (array string))) or (array forming))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information gis surface diffusion ((((array arcing) OR (array string))) OR (array forming)).
• Adding a wildcard symbol may retrieve word variants: information gis surface diffusion ((((array arcing) or (array string))) or (array forming))*.