Perhaps you should try some spelling variations:
yang cindy » yang mind
dong yang » dong hoang, wang yang, yang yang
than data » than death, loan data, can data
cindy how » mind how, city how
yang fan » zhang fan, yang dean, yang yang
than bau » than a, than you, than big
than bad » than a, than big, than law
how aid » how asia

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 fan ((((than bau) OR (than bad))) OR (than data)) yang cindy how aid ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang fan ((((than bau) OR (than bad))) or (than data)) yang cindy how aid ;~".
• Adding a wildcard symbol may retrieve word variants: dong yang fan ((((than bau) OR (than bad))) or (than data)) yang cindy how aid ;*.