Perhaps you should try some spelling variations:
"maternal nutrition" » "internal nutrition", "external nutrition", "maternal nutritivo"
"maternal nutritiva" » "internal nutritiva", "external nutritiva"
"material nutrition" » "material nutritivo"
"materials nutrition" » "materials nutritivo", "materiales nutrition"

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