Please list the names of the players whose volley score and dribbling score are over 70.
volley score refers to volleys; volleys > 70; dribbling score refers to dribbling; dribbling > 70;
SELECT DISTINCT t1.player_name FROM Player AS t1 INNER JOIN Player_Attributes AS t2 ON t1.player_api_id = t2.player_api_id WHERE t2.volleys > 70 AND t2.dribbling > 70