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 strong » array string, array sharing, norway strong
gis surface » gas surface, gibbs surface, axis surface
arrays long » arrays ang, arrays load, array along

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