Perhaps you should try some spelling variations:
information grids » information grid, information guides, information guide
state diffusion » surface diffusion
array forming » array arcing, array fermi, array formats
array string » array strong, arrays strings, array sharing
grids state » grids space

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

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