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