Perhaps you should try some spelling variations:
surface diffusion » state diffusion
information gaps » information gap, information games, information gain
arrays probing » array probing, rays probing, arrays producing
gaps surface » gas surface, maps surface, glass surface
array arcing » array forming, array probing, array sharing
array along » arrays long, array paving, array strong

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

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