Perhaps you should try some spelling variations:
irrigation requirements » irrigation equipment, nutrition requirements
requirements onn » requirements one, requirements can, requirements annex
onn dimensional » one dimensional, mono dimensional, n dimensional
array sharing » arrays bearing, array imaging, way sharing
array forming » array format, array arcing, array fermi
array string » array strong, arrays strings, array using

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

• If you are trying to use Boolean operators, they must be ALL CAPS: irrigation requirements onn dimensional ((((array sharing) OR (array forming))) OR (array string))~.
• Adding a wildcard symbol may retrieve word variants: irrigation requirements onn dimensional ((((array sharing) or (array forming))) or (array string))*.