Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan kai » yuan kai
hong jong » hong kong
hong hong » hong kong, hong ng, how hong
dang haji » dang hai, dato haji
ying jin » yang jin, yang jie
kai hua » kai hwa
hua ren » hua 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 yidan kai hua ren ((ying jin) OR (jing ji)) ((((hong jong) OR (hong hong))) OR (dang haji)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan kai hua ren ((ying jin) OR (jing ji)) ((((hong jong) or (hong hong))) or (dang haji)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yidan kai hua ren ((ying jin) OR (jing ji)) ((((hong jong) or (hong hong))) or (dang haji)) ;*.