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