Perhaps you should try some spelling variations:
gnostic literature » erotic literature, nordic literature, artistic literature
indic literature » indian literature, vedic literature, medica literature
epic literature » erotic literature, music literature, arabic literature

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((indic literature) OR (((gnostic literature) OR (epic literature)))) (english) / fast.
• Adding a wildcard symbol may retrieve word variants: ((indic literature) or (((gnostic literature) or (epic literature)))) (english) / fast*.