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