Perhaps you should try some spelling variations:
dunning john » gunning jan
china's ets » china's 5th, china's e, china's gas
ii china's » ii chinas, did china's, hui china's
dong jung » hong jong, dong ping, dong yang
yang yang » wang yang, wang yan
bonn shin » song shin, bonn ein, bonn mein

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong sin) or (((dong jung) or (yang yang)))) ii china's ets dunning john bonn shin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sin) OR (((dong jung) OR (yang yang)))) ii china's ets dunning john bonn shin ;.
• Adding a wildcard symbol may retrieve word variants: ((dong sin) or (((dong jung) or (yang yang)))) ii china's ets dunning john bonn shin ;*.