Perhaps you should try some spelling variations:
information diffraction » information extraction, information diffusion, information interaction
diffraction methods » extraction methods
methods robert » methods robust, methods recent, methods report
array forming » array format, array arcing, array formats
array fermi » array format
array using » arrays using

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 robert ((((array forming) or (array fermi))) or (array using))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information diffraction methods robert ((((array forming) OR (array fermi))) OR (array using)).
• Adding a wildcard symbol may retrieve word variants: information diffraction methods robert ((((array forming) or (array fermi))) or (array using))*.