Perhaps you should try some spelling variations:
signed expressions » gene expressions, genes expressions, like expressions
information adi » information age, information a, information act
array string » array strong, arrays strings, array sharing
array paving » array planning, array imaging, array probing
array using » arrays using
adi signed » sardf signed

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

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