Perhaps you should try some spelling variations:
surface expression » surface erosion
information flat » information flow, information fast, information font
array imaging » arrays imaging, airway imaging, ray imaging
flat surface » plant surface, yeast surface
array string » array strong, arrays strings, array sharing

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

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