Perhaps you should try some spelling variations:
dong zhang » dong hoang, dong sheng, dong yang
der besitz » der best, des besitzes
zhang van » zhang fan, zhang yan, zhang han
wang yang » wang yan, wang liang, wang yanling
yang jui » yang judy, yang yi
hoang sy » hoang vu
yang xi » yang yi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: dong zhang van der besitz ((((wang yang) or (yang jui))) or (((yang di) or (yang xi)))) hoang sy ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong zhang van der besitz ((((wang yang) OR (yang jui))) OR (((yang di) OR (yang xi)))) hoang sy ;.
• Adding a wildcard symbol may retrieve word variants: dong zhang van der besitz ((((wang yang) or (yang jui))) or (((yang di) or (yang xi)))) hoang sy ;*.