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