Perhaps you should try some spelling variations:
surface extension » surfaces extension, surface tension, surface expression
information a » information age
array sharing » array string, arrays bearing, array imaging
array forming » array format, array arcing, array fermi
array using » arrays using
a surface » sea surface

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

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