Talvez debería tentar con algunhas variantes ortográficas:
irrigation requirements » irrigation equipment, nutrition requirements
array profiling » array processing, microarray profiling
requirements a » requirements _
array paving » array planning, array imaging, array probing
array string » array strong, arrays strings, array sharing
a provision » _ provision, 3 provision, a provisional

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

• Performing a fuzzy search may retrieve terms with similar spellings: irrigation requirements a provision ((((array paving) or (array string))) or (array profiling))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: irrigation requirements a provision ((((array paving) OR (array string))) OR (array profiling))*.