Perhaps you should try some spelling variations:
"historical materialism" » "historico materialism", "historicos materialism", "historias materialism", "historical materiales", "historical materializar", "historical materializan"
"historicas materialism" » "historicas materiales", "historicas materializar", "historicas materializan", "historicos materialism", "historias materialism", "historico materialism"
"historica materialism" » "historica materiales", "historica materializar", "historica materializan"
"historia materializa" » "historia materializar", "historia materializan", "historia materializado"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("historical materialism") or ((("historicas materialism") or ((("historica materialism") or ("historia materializa"))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("historical materialism") OR ((("historicas materialism") OR ((("historica materialism") OR ("historia materializa")))))).
• Removing quotes may allow a broader search: (( historical materialism ) or ((( historicas materialism ) or ((( historica materialism ) or ( historia materializa )))))).
• Adding a wildcard symbol may retrieve word variants: (("historical materialism") or ((("historicas materialism") or ((("historica materialism") or ("historia materializa"))))))*.