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

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