Perhaps you should try some spelling variations:
sin dauer » seine dauer, die dauer, i dauer
yang july » yang judy, yang jui, yang jun
dauer vi » dauer iii, dauer von, paper vi
vi where » ii where, i where, iii where
where de » where do, where we, here de
yang xi » yang jui
yang yi » yang jui
de mi » de ma, de mr, de ti
dong » doing, long, done

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 sin dauer vi where de mi ((yang xi) OR (((yang di) OR (((yang yi) OR (yang july)))))) ;~.
• Adding a wildcard symbol may retrieve word variants: dong sin dauer vi where de mi ((yang xi) or (((yang di) or (((yang yi) or (yang july)))))) ;*.