Perhaps you should try some spelling variations:
china wang » china yang, china chang, china zhang
shang hai » shang kai, dang hai, chang ha
yin fang » yin hang, yin yang, chin fang
yang jin » yang jie, yang jun, ying jin
yu gang » xu gang, yi gang, yu fang
yi chen » jui chen
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan ((((yin fang) or (yu gang))) or (china wang)) yi chen ((yang jin) or (yang xi)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((((yin fang) OR (yu gang))) OR (china wang)) yi chen ((yang jin) OR (yang xi)) shang hai ;.
• Adding a wildcard symbol may retrieve word variants: wan ((((yin fang) or (yu gang))) or (china wang)) yi chen ((yang jin) or (yang xi)) shang hai ;*.