Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
da literatura » a literatura, de literatura, na literatura
di filosofia » la filosofia, e filosofia
life studie » life studies, life study, life stories
tests life » test life, tests like, yeasts life
studie di » studie die, studie d, studie de

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: tests life studie di filosofia ((da literatura) OR (la literatura)).
• Adding a wildcard symbol may retrieve word variants: tests life studie di filosofia ((da literatura) or (la literatura))*.