CREATE TABLE table_75655 ("Outcome" TEXT, "Event" TEXT, "Year" TEXT, "Venue" TEXT, "Partner" TEXT)

In what Year did the German Open have Yoo Sang-Hee as Partner?
SELECT "Year" FROM table_75655 WHERE "Partner" = 'yoo sang-hee' AND "Venue" = 'german open'
SELECT "Year" FROM "table_75655" WHERE "Partner" = 'yoo sang-hee' AND "Venue" = 'german open'