Perhaps you should try some spelling variations:
waves diffusion » wavelet diffusion, gas diffusion, mass diffusion
array profiling » array processing, microarray profiling
array arcing » array forming, array probing, array sharing
array string » array strong, arrays strings, array sharing
guide waves » guided waves, guided wave, guide walks

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