Perhaps you should try some spelling variations:
der reformen » der reform
reformen 6 » reformen _, reformen 2, reformen a
warn you » earn your, can you, when you
xian der » van der, man der, pian del
david ng » david g, david a, david _
wan you » want you, can you, win you
david n » david a, david _, david k

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 6 ((david ng) OR (david n)) hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan you) or (warn you)) xian der reformen 6 ((david ng) OR (david n)) hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((wan you) or (warn you)) xian der reformen 6 ((david ng) OR (david n)) hai ;*.