Perhaps you should try some spelling variations:
china chang » chin chang, china zhang, china changqi
chang you » change you, change your, thing you
shang hai » shang kai, dang hai, chang ha
you chen » you when, you chenli, you check
yang jui » yang judy, yang yi
yang jin » yang jie, yang jun, ying jin
yang xi » yang yi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: can china chang you chen ((((yang jui) OR (yang jin))) OR (((yang xi) OR (yang di)))) shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: can china chang you chen ((((yang jui) or (yang jin))) or (((yang xi) or (yang di)))) shang hai ;*.