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