Perhaps you should try some spelling variations:
structure functions » structure function
functions data » functional data
data dimension » data dimensions, data dimensional, dati dimensioni
array library » bra library, essay library, array linear
array driven » array drive, ray driven, array drift
array pixel » array pixels

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

• If you are trying to use Boolean operators, they must be ALL CAPS: structure functions data dimension ((((array driven) OR (array library))) OR (array pixel))~.
• Adding a wildcard symbol may retrieve word variants: structure functions data dimension ((((array driven) or (array library))) or (array pixel))*.