Perhaps you should try some spelling variations:
surfaces diffusion » surface diffusion, surfaces dimension, stresses diffusion
information gaas » information gaps, information games, information gains
gaas surfaces » glass surfaces, gas surface, gels surfaces
array arcing » array forming, array probing, array sharing
array string » array strong, arrays strings, array sharing
rays probing » arrays probing, gaus probing, stars probing

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

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