Perhaps you should try some spelling variations:
special expression » spatial expression, species expression, specific expression
information using » information fusion, information hiding, information modeling
using special » using spectral, using social, using spatial
array string » array strong, arrays strings, array sharing
array using » arrays using

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

• If you are trying to use Boolean operators, they must be ALL CAPS: information using special expression ((array string) OR (((array format) OR (array using))))~.
• Adding a wildcard symbol may retrieve word variants: information using special expression ((array string) or (((array format) or (array using))))*.