Perhaps you should try some spelling variations:
states diffusion » state diffusion, shapes diffusion, systems diffusion
array processing » dairy processing, query processing
array profiling » microarray profiling
guide states » guide stage, guide stars, guide strategy
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 guide states diffusion ((array string) or (((array profiling) or (array processing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information guide states diffusion ((array string) OR (((array profiling) OR (array processing)))).
• Adding a wildcard symbol may retrieve word variants: information guide states diffusion ((array string) or (((array profiling) or (array processing))))*.