Perhaps you should try some spelling variations:
cheng wei » chen wei, cheng hei, cheng siwei
shang hai » shang kai, dang hai, chang ha
wei chen » wei shen, frei chen, jui chen
yang jie » yang jin, yang jui, yang yi
tan tan » tas tan, tin tan, tang tang
tin can » tin tan
yang xi » 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: ((tan tan) or (tin can)) cheng wei chen ((((yang jie) or (yang di))) or (yang xi)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tan tan) OR (tin can)) cheng wei chen ((((yang jie) OR (yang di))) OR (yang xi)) shang hai ;.
• Adding a wildcard symbol may retrieve word variants: ((tan tan) or (tin can)) cheng wei chen ((((yang jie) or (yang di))) or (yang xi)) shang hai ;*.