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 arcing » array forming, array sharing, array using
gis surface » gas surface, gibbs surface, axis surface
arrays load » arrays brad

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 ((arrays load) or (((array arcing) or (array probing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information gis surface diffusion ((arrays load) OR (((array arcing) OR (array probing)))).
• Adding a wildcard symbol may retrieve word variants: information gis surface diffusion ((arrays load) or (((array arcing) or (array probing))))*.