Perhaps you should try some spelling variations:
"maternal nutrition" » "material nutrition", "internal nutrition", "external nutrition", "maternal nutricion", "materiall nutrition"
"maternal nutritiva" » "material nutritiva", "internal nutritiva", "external nutritiva", "materiall nutritiva"
"materials nutritiva" » "materiales nutritiva", "material nutritiva"
"materna nutritivo" » "material nutritivo"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("maternal nutrition") OR ((("maternal nutritiva") OR ((("materials nutritiva") OR ("materia nutritiva"))))))) OR ("materna nutritivo"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"maternal nutrition\") OR (((\"maternal nutritiva\") OR (((\"materials nutritiva\") OR (\"materia nutritiva\"))))))) OR (\"materna nutritivo\"))".
• Removing quotes may allow a broader search: (((( maternal nutrition ) OR ((( maternal nutritiva ) OR ((( materials nutritiva ) OR ( materia nutritiva ))))))) OR ( materna nutritivo )).
• Adding a wildcard symbol may retrieve word variants: (((("maternal nutrition") OR ((("maternal nutritiva") OR ((("materials nutritiva") OR ("materia nutritiva"))))))) OR ("materna nutritivo"))*.