Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
filosofia le » filosofia de, filosofia e, filosofia del
da filosofia » la filosofia, di filosofia, a filosofia
tests scale » tests stable, sets scale, tests shall
tests safe » tests safety, tests space, tests tafel
study da » study das, study dca, study d

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 scale) OR (tests safe)) study da filosofia le literatura".
• Adding a wildcard symbol may retrieve word variants: ((tests scale) OR (tests safe)) study da filosofia le literatura*.