Perhaps you should try some spelling variations:
wang dong » wang yong, wang yang, wang jing
wang hong » wang yong, wang hyoung, wang lihong
der rent » der re, der rede
hong hai » shang hai, zhong tai, dang hai
di rent » des rent, oil rent
yang yi » yang di, yang xi, yang jui
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang dong) or (wang hong)) hoang ((di rent) OR (der rent)) yang yi ((hong hai) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang dong) OR (wang hong)) hoang ((di rent) OR (der rent)) yang yi ((hong hai) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang dong) or (wang hong)) hoang ((di rent) OR (der rent)) yang yi ((hong hai) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: ((wang dong) or (wang hong)) hoang ((di rent) OR (der rent)) yang yi ((hong hai) or (hong yu)) ;*.