Perhaps you should try some spelling variations:
douglas mair » douglas mary, douglas a, douglas r
last things » last thing, first things, smart things
yang ying » yang yang, yang jing, huang ying
last thin » last thing
douglas m » douglas f, douglas w, douglas a
dan yang » daun yang, tan yang, wang yang
ying his » ying jin, ying hua

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: dan yang ying his ((last things) OR (last thin)) zeng ((douglas mair) OR (douglas m)) ;~.
• Adding a wildcard symbol may retrieve word variants: dan yang ying his ((last things) or (last thin)) zeng ((douglas mair) or (douglas m)) ;*.