Perhaps you should try some spelling variations:
surfaces extension » surfaces tension, surface tension, surface expression
information a » information age
array imaging » arrays imaging, airway imaging, ray imaging
array formats » array format, assay formats, array formulas
array arcing » array forming, array probing, array sharing
a surfaces » a surface, 2 surfaces, 8 surfaces

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 surfaces extension ((array imaging) or (((array formats) or (array arcing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information a surfaces extension ((array imaging) OR (((array formats) OR (array arcing)))).
• Adding a wildcard symbol may retrieve word variants: information a surfaces extension ((array imaging) or (((array formats) or (array arcing))))*.