Perhaps you should try some spelling variations:
douglas mair » douglas mary, douglas m, douglas r
ying yang » yang yang, yin yang, ying chang
douglas a » douglas f, douglas w
tan ying » fan ying, ran ying, tan yang
yang xi » yang di, yang yi, yang jui
last » east, past, list
things » thinks
thing » think

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: tan ying yang xi ((first things) OR (last (thing OR thin))) zeng ((douglas mair) OR (douglas a)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tan ying yang xi ((first things) or (last (thing OR thin))) zeng ((douglas mair) or (douglas a)) ;~".
• Adding a wildcard symbol may retrieve word variants: tan ying yang xi ((first things) or (last (thing OR thin))) zeng ((douglas mair) or (douglas a)) ;*.