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

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