Perhaps you should try some spelling variations:
integration linear » integration linked, integration research
array processing » dairy processing, query processing
space diffusion » state diffusion, slice diffusion, surface diffusion
array planning » library planning, therapy planning
linear space » linear spaces
array string » array strong, arrays strings, array sharing

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: integration linear space diffusion ((array string) OR (((array processing) OR (array planning))))~.
• Adding a wildcard symbol may retrieve word variants: integration linear space diffusion ((array string) or (((array processing) or (array planning))))*.