Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
than daem » than data, than days, than deep
can data » can tata, dan data, fan data
yang jin » yang jie, yang jun, ying jin
jin how » john how
how has » how have

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 yang ((than daem) OR (can data)) yang jin how has ;~.
• Adding a wildcard symbol may retrieve word variants: dong yang yang ((than daem) or (can data)) yang jin how has ;*.