Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, e literatura
der filosofia » de filosofia, e filosofia, di filosofia
da literatura » la literatura, a literatura, de literatura
table studie » table studies, cable studies, table study
tests table » test tables, results table, test suitable
studie der » studium der

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: "tests table studie der filosofia ((del literatura) OR (da literatura))".
• Adding a wildcard symbol may retrieve word variants: tests table studie der filosofia ((del literatura) OR (da literatura))*.