Perhaps you should try some spelling variations:
can wheat » corn wheat, can when, can beat
yang yang » wang yang, wang yan
shang kai » shang hai
yang jin » yang jie, yang jun, ying jin
wan man » woran man, kann man, wenn man
man can » man han, woman can, man kann
yang yi » yang di, yang xi, 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: wan man can wheat grains ((yang yang) or (((yang jin) or (yang yi)))) shang kai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan man can wheat grains ((yang yang) OR (((yang jin) OR (yang yi)))) shang kai ;.
• Adding a wildcard symbol may retrieve word variants: wan man can wheat grains ((yang yang) or (((yang jin) or (yang yi)))) shang kai ;*.