Perhaps you should try some spelling variations:
feng douglas » zeng douglas, long douglas, farr douglas
douglas mair » douglas mary, douglas a, douglas m
first thing » first things, first hint, first third
yang yan » yang yang, wang yan, yang yao
yang fan » zhang fan, yang dean, yang yang
last » past, list

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: daun ((yang yan) OR (yang fan)) his ((first thing) OR ((last OR east) thing)) feng douglas mair ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "daun ((yang yan) OR (yang fan)) his ((first thing) or ((last or east) thing)) feng douglas mair ;~".
• Adding a wildcard symbol may retrieve word variants: daun ((yang yan) OR (yang fan)) his ((first thing) or ((last or east) thing)) feng douglas mair ;*.