Perhaps you should try some spelling variations:
yan zhang » yuan chang, bin zhang, han chang
shang hai » shang kai, dang hai, chang ha
yin hang » yin fang, yin yang, ying chang
wei chen » wei shen, frei chen, jui chen
yang jie » yang jin, yang di, yang yi
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan ((yan zhang) or (yin hang)) wei chen ((((yang jie) OR (yang jui))) or (yang xi)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((yan zhang) OR (yin hang)) wei chen ((((yang jie) OR (yang jui))) OR (yang xi)) shang hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yan zhang) or (yin hang)) wei chen ((((yang jie) OR (yang jui))) or (yang xi)) shang hai ;*".