Perhaps you should try some spelling variations:
region gang » region gandja
huang chang » huang cheng, hoong chang, huang yang
dam region » das region, der region, die region
hua chang » huey chang, yuan chang, han chang
hong shu » cong shu, tong shui, wong shiu
gang li » gan li, tang li, wang li
hong yu » wong yue
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((hua chang) OR (huang chang)) dam region gang li ((hong shu) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((hua chang) OR (huang chang)) dam region gang li ((hong shu) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((hua chang) OR (huang chang)) dam region gang li ((hong shu) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ((hua chang) OR (huang chang)) dam region gang li ((hong shu) or (hong yu)) ;*.