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

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 ("historical materializar"))) or ("historicas materialism"))) or ((("historicos materiales") or ("historica materialism"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("historical materialism") OR ("historical materializar"))) OR ("historicas materialism"))) OR ((("historicos materiales") OR ("historica materialism")))).
• Removing quotes may allow a broader search: (((((( historical materialism ) or ( historical materializar ))) or ( historicas materialism ))) or ((( historicos materiales ) or ( historica materialism )))).
• Adding a wildcard symbol may retrieve word variants: (((((("historical materialism") or ("historical materializar"))) or ("historicas materialism"))) or ((("historicos materiales") or ("historica materialism"))))*.