Perhaps you should try some spelling variations:
wang yidan » wang yan
sang minh » kang minah, anh minh, song min
wang lin » wang li, wang qin, yang lin
hang der » gang der, anhang der, klang der
minh how » mind how, minh hoa, myth how
how secs » how self
re sang » le sang, lee sang

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 yidan) OR (wang lin)) hang der re sang minh how secs ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yidan) or (wang lin)) hang der re sang minh how secs ;*.