Perhaps you should try some spelling variations:
state study » states study, estate study, status study
sites study » states study, situ study
a filosofia » la filosofia, e filosofia, di filosofia
filosofia a » filosofia da, filosofia la, filosofia e
site study » sited study, situ study, white study
yeasts » yeast, feasts, beasts

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