Perhaps you should try some spelling variations:
yeasts situ » yeasts study, yeasts using
filosofia e » filosofia de, filosofia del
study law » study low
study la » study lay, study lca, study lia
literatur » literature

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: ((yeasts situ) OR (yeasts site)) ((study la) OR (study law)) filosofia e literatur.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yeasts situ) OR (yeasts site)) ((study la) or (study law)) filosofia e literatur".
• Adding a wildcard symbol may retrieve word variants: ((yeasts situ) OR (yeasts site)) ((study la) or (study law)) filosofia e literatur*.