Talvez debería tentar con algunhas variantes ortográficas:
information sources » information resources, information services, information sciences
surface diffusion » state diffusion
sources surface » resources surface, surfaces surface, series surface
array sharing » arrays bearing, array imaging, way sharing
array string » array strong, arrays strings, array forming
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 sources surface diffusion ((((array using) or (array sharing))) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information sources surface diffusion ((((array using) OR (array sharing))) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: information sources surface diffusion ((((array using) or (array sharing))) or (array string))*.