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