Perhaps you should try some spelling variations:
dong hoang » hong hong
hoang yao » yang yao, gang yao
than daun » than bau, than daem, than data
yang john » young john, king john, yang jin
john holt » john hope, john hull, john galt
can data » can tata, dan data, fan data
holt hai » holt a, 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 hoang yao ((than daun) OR (can data)) yang john holt hai ;~.
• Adding a wildcard symbol may retrieve word variants: dong hoang yao ((than daun) or (can data)) yang john holt hai ;*.