Perhaps you should try some spelling variations:
modeling omnidirectional » modeling directional, using omnidirectional, mobile omnidirectional
information rule » information rules, information role, information reuse
rule modeling » rules modeling, role modeling, rules modelling
array imaging » arrays imaging, airway imaging, ray imaging
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 rule modeling omnidirectional ((array imaging) or (((array string) or (array format))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information rule modeling omnidirectional ((array imaging) OR (((array string) OR (array format)))).
• Adding a wildcard symbol may retrieve word variants: information rule modeling omnidirectional ((array imaging) or (((array string) or (array format))))*.