Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
yang john » young john, king john, yang jin
john hook » john hook's, john hope, john holt
yang yao » yang yang, wang yan, yang yi
than bau » than bad, than a, than you
can data » can tata, dan data, fan data
hook hai » hong hai

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 yao ((than bau) OR (can data)) yang john hook hai ;~.
• Adding a wildcard symbol may retrieve word variants: dong yang yao ((than bau) or (can data)) yang john hook hai ;*.