Talvez debería tentar con algunhas variantes ortográficas:
irrigation equivalent » irrigation equipment, irrigation requirement, irrigation requirements
equivalent sources » equivalent scores, equivalent bodies, equivalent forms
sources provision » resource provision, sources vision, course provision
array strong » array string, array sharing, norway strong
array arcing » array forming, array probing, array sharing
array paving » array planning, array imaging, array probing

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 equivalent sources provision ((((array strong) OR (array arcing))) OR (array paving))~.
• Adding a wildcard symbol may retrieve word variants: irrigation equivalent sources provision ((((array strong) or (array arcing))) or (array paving))*.