Perhaps you should try some spelling variations:
than death » than data
dong yang » dong hoang, wang yang, yang yang
than daun » than bau, than daem, than data
sang minh » kang minah, anh minh, song min
yang yao » yang yang, wang yan, yang yi
minh how » mind how, minh hoa, myth how
how ai » how aid, how ae, how am

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 daun) OR (than death)) sang minh how ai ;~.
• Adding a wildcard symbol may retrieve word variants: dong yang yao ((than daun) or (than death)) sang minh how ai ;*.