Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
than daem » than days, than deep, thanh dam
than data » than death, loan data, can data
yang jin » yang jie, yang jun, ying jin
yang ka » yang fan, yang yao
how aid » how asia
how ai » how ae, how am, 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: wang yang ka ((than daem) OR (than data)) yang jin ((how ai) OR (how aid)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ka ((than daem) or (than data)) yang jin ((how ai) OR (how aid)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang ka ((than daem) or (than data)) yang jin ((how ai) OR (how aid)) ;*.