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

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang und ruckgang des realen ((liang li) OR (liang wei)) ((shang hai) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang und ruckgang des realen ((liang li) OR (liang wei)) ((shang hai) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang und ruckgang des realen ((liang li) OR (liang wei)) ((shang hai) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang und ruckgang des realen ((liang li) OR (liang wei)) ((shang hai) or (hong yu)) ;*.