Perhaps you should try some spelling variations:
wei dauer » der dauer, i dauer
dong wei » wang wei, dong di, dong hoi
dauer iv » dauer iii, dauer ist, tauber iv
iv where » iv were, v where, 2 where
where de » where do, where we, here de
ying jin » yang jin, jing ji, yang jie
yang jui » yang judy, yang xi
yang yi » yang xi

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: dong wei dauer iv where de la ((((yang yi) OR (ying jin))) OR (((yang di) OR (yang jui)))) ;~.
• Adding a wildcard symbol may retrieve word variants: dong wei dauer iv where de la ((((yang yi) or (ying jin))) or (((yang di) or (yang jui)))) ;*.