Talvez debería tentar con algunhas variantes ortográficas:
studies expression » studying expression, student expression, bodies expression
array formulas » area formulas, harrop formulas, array format
based studies » case studies, based study
array imaging » arrays imaging, airway imaging, ray imaging
array arcing » array forming, array probing, 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 based studies expression ((array imaging) or (((array formulas) or (array arcing))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information based studies expression ((array imaging) OR (((array formulas) OR (array arcing)))).
• Adding a wildcard symbol may retrieve word variants: information based studies expression ((array imaging) or (((array formulas) or (array arcing))))*.