Perhaps you should try some spelling variations:
surface diffusion » state diffusion
array profiling » array processing, microarray profiling
guide surface » oxide surface, outside surface, oxide surfaces
array string » arrays strings, array sharing, array forming
array strong » array sharing, norway strong, stay 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 guide surface diffusion ((array string) or (((array profiling) or (array strong))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information guide surface diffusion ((array string) OR (((array profiling) OR (array strong)))).
• Adding a wildcard symbol may retrieve word variants: information guide surface diffusion ((array string) or (((array profiling) or (array strong))))*.