Perhaps you should try some spelling variations:
sozialgeschichte grey » sozialgeschichte der, sozialgeschichte des
zur sozialgeschichte » zur zeitgeschichte
literature survey » literature series, literacy survey
grey literature » gray literature, greek literature
und text » und texte
text zur » texte zur, text zum, text zu
studien » studies

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

• Performing a fuzzy search may retrieve terms with similar spellings: studien und text zur sozialgeschichte grey literature survey~.
• Adding a wildcard symbol may retrieve word variants: studien und text zur sozialgeschichte grey literature survey*.