Perhaps you should try some spelling variations:
wang dong » wang yong, wang hong, wang yang
dong dong » dong hoang, dong jung, dong ping
shang hai » shang kai, dang hai, chang ha
dong der » ding der, dong di, dong wei
hong hai » zhong tai, dang hai, hong tan
hong yu » wong yue
gan » gain, gang, ganz

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 dong der re gan li ((((hong hai) or (shang hai))) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dong dong der re gan li ((((hong hai) OR (shang hai))) OR (hong yu)) ;.
• Adding a wildcard symbol may retrieve word variants: wang dong dong der re gan li ((((hong hai) or (shang hai))) or (hong yu)) ;*.