Perhaps you should try some spelling variations:
rhein yang » chen yang
wang hong » wang yong, wang hyoung, wang lihong
wang yang » wang yan, wang liang, wang yanling
dem rhein » der rhein, den rhein, am rhein
kong dem » kong yam, kong lee, kong sek
wong yue » wang yue, hong yu
yang li » yang lin, yang di, yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang hong) or (wang yang)) kong dem rhein yang li ((cong shu) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang hong) OR (wang yang)) kong dem rhein yang li ((cong shu) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wang hong) or (wang yang)) kong dem rhein yang li ((cong shu) or (wong yue)) ;*.