Perhaps you should try some spelling variations:
de literatura » de litterature, y literatura, a literatura
sales studien » als studien, gilles studien, aus studien
la literatura » la litterature, a literature
sals studies » goals studies, gels studies, aes studies
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 (sals studies)) di filosofia ((de literatura) OR (la literatura)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "lost ((sales studien) OR (sals studies)) di filosofia ((de literatura) or (la literatura))".
• Adding a wildcard symbol may retrieve word variants: lost ((sales studien) OR (sals studies)) di filosofia ((de literatura) or (la literatura))*.