Perhaps you should try some spelling variations:
y literatura » la literatura
di filosofia » la filosofia, e filosofia
filosofia y » filosofia e, filosofia _, filosofia de
studium di » studium die, studium i, studium ii
feast day » first day, last day, fast days
fast day » first day

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((feast day) OR (fast day)) studium di filosofia y literatura".
• Adding a wildcard symbol may retrieve word variants: ((feast day) OR (fast day)) studium di filosofia y literatura*.