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