Perhaps you should try some spelling variations:
interaction extraction » intersection extraction, interactive extraction, interaction interaction
array forming » array format, array fermi, array formats
methods role » methods rules, methods remote, methods robert
array string » array strong, arrays strings, array sharing
array arcing » array probing, array sharing, array using

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: interaction extraction methods role ((((array string) or (array forming))) or (array arcing))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: interaction extraction methods role ((((array string) OR (array forming))) OR (array arcing)).
• Adding a wildcard symbol may retrieve word variants: interaction extraction methods role ((((array string) or (array forming))) or (array arcing))*.