Perhaps you should try some spelling variations:
yang cindy » yang mind
dong yang » dong hoang, wang yang, yang yang
than daun » than bau, than daem, than data
can data » can tata, dan data, fan data
how ai » how aid, how am, how asia
how ae » how age, how am, how case
dean » dewan, jean, den

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