Perhaps you should try some spelling variations:
cheng shang » cheng zhang, chen shuang
wang liang » wang yang
liang dean » liang dan, yang dean, lane dean
cheng han » chen hao
jin song » jie song, john song, jin ying
kim song » kim young, kim eung
dean yu » dian yue

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 liang dean yu ((cheng shang) OR (cheng han)) ((jin song) OR (kim song)) so ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang dean yu ((cheng shang) OR (cheng han)) ((jin song) or (kim song)) so ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang dean yu ((cheng shang) OR (cheng han)) ((jin song) or (kim song)) so ;*.