Perhaps you should try some spelling variations:
wang danning » wang yanling, wang daoping, wang yangming
danning ming » panning using
heat gain » health gain, health gains, wheat grains
hua gain » run gain, hua ban, via gain
wang lin » wang li, wang qin, yang lin
hong hai » shang hai, zhong tai, dang hai
hong ghi » zhong zhi, hong g

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 danning ming ((hua gain) OR (heat gain)) wang lin ((hong hai) OR (hong ghi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang danning ming ((hua gain) OR (heat gain)) wang lin ((hong hai) or (hong ghi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang danning ming ((hua gain) OR (heat gain)) wang lin ((hong hai) or (hong ghi)) ;*.