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

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