CREATE TABLE table_53178 ("Date" TEXT, "Venue" TEXT, "Score" TEXT, "Result" TEXT, "Competition" TEXT)

What competition resulted in 2-0 score, hosted in Amman?
SELECT "Competition" FROM table_53178 WHERE "Score" = '2-0' AND "Venue" = 'amman'
SELECT "Competition" FROM "table_53178" WHERE "Score" = '2-0' AND "Venue" = 'amman'