Perhaps you should try some spelling variations:
reformen jan » reformen a, reformen nach, reformen der
reformen von » formen von, reform von, referaten von
david hong » david ng
you xian » you liang, you can, you mean
xian wei » xiang wei, liang wei, han wei
hong ghi » zhong zhi, hong g, hong hai
wan you » want you, warn you, can you

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wan you xian wei ((reformen jan) OR (reformen von)) david hong ghi ;~".
• Adding a wildcard symbol may retrieve word variants: wan you xian wei ((reformen jan) OR (reformen von)) david hong ghi ;*.