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

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 ((yang jie) OR (yang di)) der frisian john kong sar ;~.
• Adding a wildcard symbol may retrieve word variants: zhang yunling ((yang jie) or (yang di)) der frisian john kong sar ;*.