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