Perhaps you should try some spelling variations:
surface diffusion » state diffusion
information than » information theme, information time, information test
array processing » dairy processing, query processing
array forming » array format, array arcing, array fermi
than surface » chan surface, chain surface, chen surface
array string » array strong, arrays strings, array sharing

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

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