Perhaps you should try some spelling variations:
formulation development » communication development, education development, organization development
development multi » development multiple, development malawi, development mini
array imaging » arrays imaging, airway imaging, ray imaging
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.

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