Perhaps you should try some spelling variations:
surface diffusion » state diffusion
arrays producing » arrays probing, arrays produced, arrays profiling
information gis » information gain, information gaps, information grid
array arcing » array forming, array probing, array sharing
gis surface » gas surface, gibbs surface, axis surface
arrays load » arrays brad

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• Performing a fuzzy search may retrieve terms with similar spellings: information gis surface diffusion ((arrays load) OR (((array arcing) OR (arrays producing))))~.
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