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

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan man can wheat grains ((yan liang) or (((((yang jie) or (yang jui))) or (yang di)))) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan man can wheat grains ((yan liang) OR (((((yang jie) OR (yang jui))) OR (yang di)))) shang hai ;.
• Adding a wildcard symbol may retrieve word variants: wan man can wheat grains ((yan liang) or (((((yang jie) or (yang jui))) or (yang di)))) shang hai ;*.