Perhaps you should try some spelling variations:
informatics great » informatics fast, informatics a, informatics e
state diffusion » surface diffusion
array string » array strong, arrays strings, array sharing
array arcing » array forming, array probing, array sharing
great state » great stage, great shape, great style

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: informatics great state diffusion ((array string) OR (((array format) OR (array arcing))))~.
• Adding a wildcard symbol may retrieve word variants: informatics great state diffusion ((array string) or (((array format) or (array arcing))))*.