Perhaps you should try some spelling variations:
china wang » china yang, china chang, china zhang
chin fang » chin chang, china yang, cai fang
shang hai » shang kai, dang hai, chang ha
yin fang » yin hang, yin yang, jing fang
wei chen » wei shen, frei chen, jui chen
yang jie » yang jin, yang di, yang jui
yang yi » yang di, yang xi, 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 (((chin fang) OR (china wang)))) wei chen ((yang jie) or (yang yi)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((yin fang) OR (((chin fang) OR (china wang)))) wei chen ((yang jie) OR (yang yi)) shang hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yin fang) or (((chin fang) OR (china wang)))) wei chen ((yang jie) or (yang yi)) shang hai ;".
• Adding a wildcard symbol may retrieve word variants: wan ((yin fang) or (((chin fang) OR (china wang)))) wei chen ((yang jie) or (yang yi)) shang hai ;*.