Perhaps you should try some spelling variations:
lang yan » wang yan, wang yang, zhang yan
gong tin » gong min, gong si, gong di
yang xi » yang di, yang yi, yang jui
li gong » li cong, li gang, li rong
hong du » hong yu, hong tou
long du » long d, long do, long run
yan li » yang li, yuan li, gan 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: lang yan ((yan li) OR (yang xi)) li gong tin ((hong du) OR (long du)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ((yan li) or (yang xi)) li gong tin ((hong du) OR (long du)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan ((yan li) or (yang xi)) li gong tin ((hong du) OR (long du)) ;*.