Perhaps you should try some spelling variations:
der reformen » der reform
warn you » earn your, can you, when you
xian der » van der, man der, pian del
hong hai » shang hai, zhong tai, dang hai
wan you » want you, can you, win you
a david » a davis, de david, et david
2 david » 2.1 david, 210 david, 226 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 (warn you)) xian der reformen ((a david) OR (2 david)) hong hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan you) or (warn you)) xian der reformen ((a david) OR (2 david)) hong hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((wan you) or (warn you)) xian der reformen ((a david) OR (2 david)) hong hai ;*.