Perhaps you should try some spelling variations:
gnostic literature » erotic literature, nordic literature, artistic literature
heroic literature » erotic literature, epic literature, arabic literature
indic literature » indian literature, vedic literature, medica literature
music literature » erotic 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 (music literature))) OR (((gnostic literature) OR (heroic literature)))) (english) / fast.
• Adding a wildcard symbol may retrieve word variants: ((((indic literature) or (music literature))) or (((gnostic literature) or (heroic literature)))) (english) / fast*.