Perhaps you should try some spelling variations:
surface diffusion » state diffusion
array processing » dairy processing, query processing
information pt » information part, information plus, information push
array string » array strong, arrays strings, array sharing
array using » arrays using
pt surface » bet surface, cut surface, mmt surface

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

• If you are trying to use Boolean operators, they must be ALL CAPS: information pt surface diffusion ((array string) OR (((array using) OR (array processing))))~.
• Adding a wildcard symbol may retrieve word variants: information pt surface diffusion ((array string) or (((array using) or (array processing))))*.