Perhaps you should try some spelling variations:
irrigation equipment » purification equipment, irrigation development, application equipment
control extensions » central extensions, central extension, control extending
equipment control » equipment rental, equipment costs, equipment cost
array arcing » array forming, array probing, array sharing
array string » array strong, arrays strings, array sharing
array along » arrays long, array paving, array strong

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 control extensions ((array along) or (((array arcing) or (array string))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: irrigation equipment control extensions ((array along) OR (((array arcing) OR (array string)))).
• Adding a wildcard symbol may retrieve word variants: irrigation equipment control extensions ((array along) or (((array arcing) or (array string))))*.