Perhaps you should try some spelling variations:
sales studien » als studien, sals studies, gilles studien
goals studies » gels studies, sals studies, models studies
de literatura » de litterature, y literatura, a literatura
la literatura » la litterature, a literature
di filosofia » la filosofia, e filosofia
lost » loss, los

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: lost ((sales studien) OR (goals studies)) di filosofia ((de literatura) OR (la literatura)).
• Adding a wildcard symbol may retrieve word variants: lost ((sales studien) or (goals studies)) di filosofia ((de literatura) or (la literatura))*.