Perhaps you should try some spelling variations:
nutrient requirements » nutritional requirements
requirements data » requirements a, requirements case, requirements based
data dimension » data dimensions, data dimensional, dati dimensioni
array from » arrays from, gray from
ray from » rays from, gray from, way from

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

• Performing a fuzzy search may retrieve terms with similar spellings: nutrient requirements data dimension ((((array from) or (ray from))) or ((rays or ray) from))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nutrient requirements data dimension ((((array from) OR (ray from))) OR ((rays OR ray) from)).
• Adding a wildcard symbol may retrieve word variants: nutrient requirements data dimension ((((array from) or (ray from))) or ((rays or ray) from))*.