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

You may be able to get more results by adjusting your search query.

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