Yap made the hunt for these lost maps a major life goal. He searched high and low, visiting libraries large and small throughout Taiwan, and joined private map collectors 'clubs. He also consulted the military, and even went to search in Japan's National Diet Library, but as before found nothing.
葉高華也曾把尋找這些佚失的圖幅作為人生一大夢想，跑遍國內大小圖書館不說，還加入民間的古地圖收藏家俱樂部四處打探，並透過管道向軍方詢問，甚至遠赴日本國會圖書館搜尋，但仍舊一無所獲。