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