Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
than days » than daem, than data
shang hai » shang kai, dang hai, hong hai
than dan » than daem, than data, than done
yang jin » yang jie, yang jun, ying jin
chang ha » chang mae
dean » dewan, jean, den

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

• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang dean ((than dan) OR (than days)) yang jin ((shang hai) OR (chang ha)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang dean ((than dan) OR (than days)) yang jin ((shang hai) or (chang ha)) ;~".
• Adding a wildcard symbol may retrieve word variants: dong yang dean ((than dan) OR (than days)) yang jin ((shang hai) or (chang ha)) ;*.