Perhaps you should try some spelling variations:
irrigation equipment » purification equipment, irrigation development, application equipment
vs dimensional » _ dimensional, 3 dimensional, 2 dimensional
array imaging » arrays imaging, airway imaging, ray imaging
equipment vs » equipment v, equipment vi, equipment agvs
array string » array strong, array sharing, array forming

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

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