Perhaps you should try some spelling variations:
yang ruckgang » und ruckgang
a ruckgang » 8 ruckgang, f ruckgang, der ruckgang
rent liang » peng liang
shang hai » shang kai, dang hai, chang ha
des rent » des real
liang li » ling li, qiang li, liang wei
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 ((yang ruckgang) OR (a ruckgang)) des rent liang li ((shang hai) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang ruckgang) OR (a ruckgang)) des rent liang li ((shang hai) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang ruckgang) OR (a ruckgang)) des rent liang li ((shang hai) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yang ruckgang) OR (a ruckgang)) des rent liang li ((shang hai) or (hong yu)) ;*.