Talvez debería tentar con algunhas variantes ortográficas:
subsurface diffusion » surface diffusion, surfaces diffusion, subsurface pollution
information deep » information sleep, information desk, informatics deep
array string » array strong, arrays strings, array sharing
array arcing » array forming, array probing, array sharing

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "information deep subsurface diffusion ((array string) OR (((array arcing) OR (arrays using))))~".
• Adding a wildcard symbol may retrieve word variants: information deep subsurface diffusion ((array string) OR (((array arcing) OR (arrays using))))*.