Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
than daun » than bau, than daem, than data
dan data » can data, dan dana, dn data
yang jin » yang jie, yang jun, ying jin
yang ka » yang fan, yang yao
how hai » how has, how ai, how have
how hci » how heis

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: wang yang ka ((than daun) OR (dan data)) yang jin ((how hai) OR (how hci)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ka ((than daun) or (dan data)) yang jin ((how hai) OR (how hci)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang ka ((than daun) or (dan data)) yang jin ((how hai) OR (how hci)) ;*.