Perhaps you should try some spelling variations:
rhein gang » ein gang
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
der rhein » der rein, des rheins
hong shu » tong shui, wong shiu, hong seo
gang li » gan li, tang li, wang li
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 ((dong yang) OR (yang yang)) der rhein gang li ((((hong shu) or (cong shu))) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((dong yang) OR (yang yang)) der rhein gang li ((((hong shu) OR (cong shu))) OR (hong yu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((dong yang) OR (yang yang)) der rhein gang li ((((hong shu) or (cong shu))) or (hong yu)) ;*".