Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
than daem » than days, than deep, thanh dam
than data » than death, loan data, can data
shang hai » shang kai, dang hai, hong hai
yang fan » zhang fan, yang dean, yang yang
yang jin » yang jie, yang jun, ying jin
chang ha » chang mae

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 fan ((than daem) OR (than data)) yang jin ((shang hai) OR (chang ha)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang fan ((than daem) OR (than data)) yang jin ((shang hai) or (chang ha)) ;~".
• Adding a wildcard symbol may retrieve word variants: dong yang fan ((than daem) OR (than data)) yang jin ((shang hai) or (chang ha)) ;*.