Perhaps you should try some spelling variations:
"maternal nutrition" » "materna nutrition", "materials nutrition", "materia nutrition", "maternal nutricion"
"maternal nutritiva" » "materna nutritiva", "materials nutritiva", "materia nutritiva"
"materiall nutritivo" » "materials nutritivo", "materiales nutritivo", "materia nutritivo", "material nutritivo"
"material nutritivo" » "materia 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 ("materiall nutritivo"))) OR ("material nutritivo"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"maternal nutrition\") OR (((((\"maternal nutritiva\") OR (\"materiall nutritivo\"))) OR (\"material nutritivo\"))))".
• Removing quotes may allow a broader search: (( maternal nutrition ) OR ((((( maternal nutritiva ) OR ( materiall nutritivo ))) OR ( material nutritivo )))).
• Adding a wildcard symbol may retrieve word variants: (("maternal nutrition") OR ((((("maternal nutritiva") OR ("materiall nutritivo"))) OR ("material nutritivo"))))*.