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

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 ((("historica materializar") or ((("historica materializado") OR ("historia materializado"))))))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("historical materialism") OR ((("historicas materialism") OR ((("historica materialism") OR ((("historica materializar") OR ((("historica materializado") OR ("historia materializado")))))))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"historical materialism\") or (((\"historicas materialism\") or (((\"historica materialism\") or (((\"historica materializar\") or (((\"historica materializado\") OR (\"historia materializado\"))))))))))".
• Removing quotes may allow a broader search: (( historical materialism ) or ((( historicas materialism ) or ((( historica materialism ) or ((( historica materializar ) or ((( historica materializado ) OR ( historia materializado )))))))))).
• Adding a wildcard symbol may retrieve word variants: (("historical materialism") or ((("historicas materialism") or ((("historica materialism") or ((("historica materializar") or ((("historica materializado") OR ("historia materializado"))))))))))*.