אולי כדאי לנסות איות אחר או כתיב מלא:
surface diffusion » state diffusion
information gis » information gain, information gaps, information grid
arrays bearing » arrays searching, arrays swarming, arrays imaging
array paving » array planning, array imaging, array probing
array arcing » array forming, array probing, array sharing
gis surface » gas surface, gibbs surface, axis surface

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• Performing a fuzzy search may retrieve terms with similar spellings: information gis surface diffusion ((array paving) or (((array arcing) or (arrays bearing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information gis surface diffusion ((array paving) OR (((array arcing) OR (arrays bearing)))).
• Adding a wildcard symbol may retrieve word variants: information gis surface diffusion ((array paving) or (((array arcing) or (arrays bearing))))*.