Perhaps you should try some spelling variations:
results table » results tables, results time, results three
a literatura » la literatura, a literature, y literatura
filosofia a » filosofia da, filosofia la, filosofia e
study dca » study dcm, study dct, study data
study da » study das, study d, study d3

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "results table ((study da) OR (study dca)) filosofia a literatura".
• Adding a wildcard symbol may retrieve word variants: results table ((study da) OR (study dca)) filosofia a literatura*.