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 liang » you xian, you liangzhi
you mean » you can, you eat, you lead
hong ghi » zhong zhi, hong g, hong hai

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