Perhaps you should try some spelling variations:
kong remaining » kong remain, change remaining
remaining time » learning time, reading time, remaining topics
feng douglas » zeng douglas, long douglas, farr douglas
time last » time list, time past, time lost
tan kong » tan hong
thing » thin
things » thins

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 kong remaining time last ((thing OR think) OR (things OR thinks)) feng douglas f ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tan kong remaining time last ((thing OR think) or (things or thinks)) feng douglas f ;~".
• Adding a wildcard symbol may retrieve word variants: tan kong remaining time last ((thing OR think) or (things or thinks)) feng douglas f ;*.