CREATE TABLE table_name_33 (tournament VARCHAR2, partner VARCHAR2, opponent_in_the_final VARCHAR2)

What Tournament did Silva Partner with Nicole Thijssen with Opponent in the final Nina Bratchikova & Frederica Piedade?
SELECT tournament FROM table_name_33 WHERE partner = "nicole thijssen" AND opponent_in_the_final = "nina bratchikova & frederica piedade"
SELECT "tournament" FROM "table_name_33" WHERE "nicole thijssen" = "partner" AND "nina bratchikova & frederica piedade" = "opponent_in_the_final"