Perhaps you should try some spelling variations:
information gis » information gain, information gaps, information grid
state diffusion » surface diffusion
array imaging » arrays imaging, airway imaging, ray imaging
array string » array strong, arrays strings, array sharing
array along » arrays long, array arcing, array paving
gis state » ppgis state

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 state diffusion ((array along) OR (((array string) OR (array imaging))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "information gis state diffusion ((array along) OR (((array string) OR (array imaging))))".
• Adding a wildcard symbol may retrieve word variants: information gis state diffusion ((array along) OR (((array string) OR (array imaging))))*.