Perhaps you should try some spelling variations:
region tang » region taking, region trade, region table
dam region » das region, der region, die region
wang wang » wang liang, wang yan, wang yong
wang yang » wang yan, wang liang, wang yanling
tong shui » tong hui, cong shu, gong hui
yang dam » yang dean, yang dali, yang di
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 wang yang dam region tang li ((tong shui) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yang dam region tang li ((tong shui) OR (hong yu)) ;.
• Adding a wildcard symbol may retrieve word variants: wang wang yang dam region tang li ((tong shui) or (hong yu)) ;*.