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