Perhaps you should try some spelling variations:
dilma » dima, wilma, vilma
dilema » dilemma, dilemas
dilemmas » dilemma
rousseff" » rousseau", youssef", rousset"
roussel" » russel", rousseau"

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: "(dilma OR (dilema OR dilemmas)) (rousseff" OR roussel").
• Removing quotes may allow a broader search: (dilma or (dilema or dilemmas)) (rousseff OR roussel ).
• Adding a wildcard symbol may retrieve word variants: "(dilma or (dilema or dilemmas)) (rousseff" OR roussel")*.