Perhaps you should try some spelling variations:
surface diffusion » state diffusion
information gis » information gain, information gaps, information grid
array probing » arrays probing, assay probing, array profiling
array paving » array planning, array imaging, array sharing
array arcing » array forming, array sharing, array using
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 paving) OR (array probing))) or (array arcing))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information gis surface diffusion ((((array paving) OR (array probing))) OR (array arcing)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "information gis surface diffusion ((((array paving) OR (array probing))) or (array arcing))".
• Adding a wildcard symbol may retrieve word variants: information gis surface diffusion ((((array paving) OR (array probing))) or (array arcing))*.