Perhaps you should try some spelling variations:
processing learning » processing planning, process learning, processes learning
learning decision » learning design, planning decision, learning designs
array formulas » area formulas, harrop formulas, array format
array string » array strong, arrays strings, array sharing
array fermi » array forming, array format

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

• Performing a fuzzy search may retrieve terms with similar spellings: information processing learning decision ((((array formulas) or (array fermi))) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information processing learning decision ((((array formulas) OR (array fermi))) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: information processing learning decision ((((array formulas) or (array fermi))) or (array string))*.