Perhaps you should try some spelling variations:
state diffusion » surface diffusion
array sharing » array string, arrays bearing, array imaging
array probing » arrays probing, assay probing, array profiling
array arcing » array forming, array using, array along
guide state » guide stage, guide safe, guide star

You may be able to get more results by adjusting your search query.

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