Perhaps you should try some spelling variations:
yiwei wang's » wei yang's
wang yang » wang yan, wang liang, wang yanling
dang hari » dang hai
guan via » plan via
yang jin » yang jie, yang jun, ying jin
guan li » gan li, yuan li, yuan lin
wang li » wang lei, wang lin, tang li

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: yiwei wang's ((guan via) OR (guan li)) ai ((((wang yang) OR (wang li))) OR (yang jin)) dang hari ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yiwei wang's ((guan via) OR (guan li)) ai ((((wang yang) or (wang li))) or (yang jin)) dang hari ;~".
• Adding a wildcard symbol may retrieve word variants: yiwei wang's ((guan via) OR (guan li)) ai ((((wang yang) or (wang li))) or (yang jin)) dang hari ;*.