Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yuhan fei » yuan fei, han fei, yan fei
hong than » hong tan, long thanh, hong hai
liang li » ling li, qiang li, liang wei
wang wei » zhang wei, wang zhi
yang lin » yang jin, wang lin, yang li
yu chen » yu cheng, yi chen, yulu chen

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 yuhan fei yu chen ((((liang li) OR (wang wei))) OR (yang lin)) hong than ;~.
• Adding a wildcard symbol may retrieve word variants: wang yuhan fei yu chen ((((liang li) or (wang wei))) or (yang lin)) hong than ;*.