Perhaps you should try some spelling variations:
than data » than death, loan data, can data
yang yang » wang yang, wang yan
sang minh » kang minah, anh minh, song min
yang yao » wang yan, yang yi, yang fan
than bau » than a, than you, than big
than bad » than a, than big, than law
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: yang yang yao ((((than bau) OR (than bad))) OR (than data)) sang minh how ai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang yao ((((than bau) OR (than bad))) or (than data)) sang minh how ai ;~".
• Adding a wildcard symbol may retrieve word variants: yang yang yao ((((than bau) OR (than bad))) or (than data)) sang minh how ai ;*.