Perhaps you should try some spelling variations:
amin shang » amin hong, anming zhang
wang yang » wang yan, wang liang, wang yanling
ying amin » ying jin
shang hai » shang kai, dang hai, chang ha
yang li » yang lin, yang di, tang li
yang yi » yang di, yang jui
yang xi » yang di, yang jui

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: wang yang ((yang li) OR (((yang yi) OR (yang xi)))) (rene OR gene) ying amin shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang ((yang li) or (((yang yi) or (yang xi)))) (rene or gene) ying amin shang hai ;*.