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