SELECT MAX(wins) FROM table_name_82 WHERE goal_difference < 4 AND club = "villarreal cf" AND played > 38
Berapa jumlah kemenangan tertinggi dengan perbedaan gol kurang dari 4 di Villarreal CF dan lebih dari 38 dimainkan?
CREATE TABLE table_name_82 (wins INTEGER, played VARCHAR, goal_difference VARCHAR, club VARCHAR)