Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
lang yan » wang yan, zhang yan, yang yang
qian kim » qian yi, tan kim, hwan kim
kim song » kim young, kim eung
song yun » song byung, chong yun, young yun
dr rene » der rent
erence » terence, terrence

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: ((lang yan) OR (wang yang)) guan ((dr rene) OR (di erence)) qian kim song yun ;~.
• Adding a wildcard symbol may retrieve word variants: ((lang yan) or (wang yang)) guan ((dr rene) or (di erence)) qian kim song yun ;*.