Perhaps you should try some spelling variations:
douglas john » douglas jones, douglas j, douglas o
douglas sin » douglas mair
wing yang » wang yang, ying yang, wang yan
yang yang » wang yang, wang yan
yang i » yang di, yang xi, yang yi
i last » _ last, a last, 3 last
thing » things, thin

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: wing yang yang i last (thing OR think) zeng ((douglas sin) OR (douglas john)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yang yang i last (thing or think) zeng ((douglas sin) OR (douglas john)) ;~".
• Adding a wildcard symbol may retrieve word variants: wing yang yang i last (thing or think) zeng ((douglas sin) OR (douglas john)) ;*.