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