Perhaps you should try some spelling variations:
information diffraction » information extraction, information diffusion, information interaction
diffraction methods » extraction methods
array forming » array arcing, array fermi, array formats
methods rcei » methods recent, methods forced, methods rules
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 diffraction methods rcei ((((array string) or (array format))) or (array forming))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information diffraction methods rcei ((((array string) OR (array format))) OR (array forming)).
• Adding a wildcard symbol may retrieve word variants: information diffraction methods rcei ((((array string) or (array format))) or (array forming))*.