Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
bohun li » bohua li
li zhang » _ zhang
gong min » jong min, song min, gong meng
yan tan » tan tan, yan clan, yan guan
nan yan » nan ya, wang yan, qian yan
zhang a » zhang ya, zhang _, zhang i
a gong » a gongo
wang » wing, wan, lang

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: wang ((((yan tan) OR (yang yang))) OR (nan yan)) bohun li zhang a gong min ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((yan tan) or (yang yang))) or (nan yan)) bohun li zhang a gong min ;*.