Perhaps you should try some spelling variations:
international based » international basic, international basis, international barley
based extensions » based extension, base extension, brand extensions
array imaging » arrays imaging, airway imaging, ray imaging
array string » array strong, arrays strings, array sharing
way sharing » car sharing, key sharing, data sharing
competition » composition

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

• Performing a fuzzy search may retrieve terms with similar spellings: competition international based extensions ((((array imaging) or (way sharing))) or (array string))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: competition international based extensions ((((array imaging) OR (way sharing))) OR (array string)).
• Adding a wildcard symbol may retrieve word variants: competition international based extensions ((((array imaging) or (way sharing))) or (array string))*.