Perhaps you should try some spelling variations:
soybean grain » soybean chain, bean grain
yang liang » wang liang, yan liang, yang yang
a soybean » _ soybean, 4 soybean, _ soybeans
zhong tai » hong tan, hong hai, zhong zhi
yang jie » yang jin, yang jui, yang xi
man a » man ja, oman a, man _
kann » ann

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: kann man a soybean grain ((yang liang) OR (((yang jie) OR (yang di)))) zhong tai ;~.
• Adding a wildcard symbol may retrieve word variants: kann man a soybean grain ((yang liang) or (((yang jie) or (yang di)))) zhong tai ;*.