Perhaps you should try some spelling variations:
der reformen » der reform
when you » when do
xian der » van der, man der, pian del
de david » die david, wade david, dawe david
hong hai » shang hai, zhong tai, dang hai
wan you » want you, warn you, can you
a david » 2 david, a davis, et david

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