Perhaps you should try some spelling variations:
zhang yunling » wang yanling, zhang yuqin, zhang guoping
frisian john » frisian town, friedman john, brian john
der frisian » des frisian, west frisian
john kong » john king, john song, john wong
kong star » kong sar
yang jie » yang jin, yang jui, yang xi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((zhang yunling) OR (zhang chunlin)) ((yang jie) OR (yang di)) der frisian john kong star ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((zhang yunling) OR (zhang chunlin)) ((yang jie) or (yang di)) der frisian john kong star ;~".
• Adding a wildcard symbol may retrieve word variants: ((zhang yunling) OR (zhang chunlin)) ((yang jie) or (yang di)) der frisian john kong star ;*.