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