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

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