Talvez debería tentar con algunhas variantes ortográficas:
squares regression » square regression, hazards regression
information iv » information ii, information i, information ir
array string » array strong, array sharing, array forming
array arcing » array forming, array probing, array sharing
iv squares » _ squares, bm squares, ii square

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• Performing a fuzzy search may retrieve terms with similar spellings: information iv squares regression ((((array string) or (arrays strings))) or (array arcing))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information iv squares regression ((((array string) OR (arrays strings))) OR (array arcing)).
• Adding a wildcard symbol may retrieve word variants: information iv squares regression ((((array string) or (arrays strings))) or (array arcing))*.