Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
shang hai » shang kai, dang hai, chang ha
yang jie » yang jin, yang jui, yang yi
wan man » woran man, kann man, wenn man
man han » man hat, man can, man kann
yang xi » yang yi, yang jui
wheat » what, heat

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: wan man han wheat grains ((yan liang) OR (((((yang jie) OR (yang xi))) OR (yang di)))) shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan man han wheat grains ((yan liang) or (((((yang jie) OR (yang xi))) or (yang di)))) shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wan man han wheat grains ((yan liang) or (((((yang jie) OR (yang xi))) or (yang di)))) shang hai ;*.