Perhaps you should try some spelling variations:
und ruckgang » der ruckgang, und zugang, und ruckzug
ruckgang des » ruckgang der
des realen » der realen
shang kai » shang hai
gang und » lang und, zugang und, zwang und
liang li » ling li, qiang li, liang wei
wong yue » wang yue, hong yu

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: gang und ruckgang des realen liang li ((shang kai) OR (wong yue)) ;~.
• Adding a wildcard symbol may retrieve word variants: gang und ruckgang des realen liang li ((shang kai) or (wong yue)) ;*.