Perhaps you should try some spelling variations:
dong hoang » hong hong
dong jung » hong jong, dong ping, dong yang
shang hai » shang kai, dang hai, chang ha
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
tan yong » tan hong, tan kong, tan yang
yi shang » yi chang, wei shang, xia shang
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan ((yang jin) or (yang jie)) ((((dong hoang) or (dong jung))) or (tan yong)) yi shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((yang jin) OR (yang jie)) ((((dong hoang) OR (dong jung))) OR (tan yong)) yi shang hai ;.
• Adding a wildcard symbol may retrieve word variants: wang yan ((yang jin) or (yang jie)) ((((dong hoang) or (dong jung))) or (tan yong)) yi shang hai ;*.