Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
chang ann » chang min, chang yun, change annex
chang won » chang soon, chang min, chang you
shang kai » shang hai
yang ti » yang di, yang xi, yang yi
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yang ti han ((chang ann) OR (chang won)) ((shang kai) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yang ti han ((chang ann) OR (chang won)) ((shang kai) OR (hong yu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yang ti han ((chang ann) OR (chang won)) ((shang kai) or (hong yu)) ;*".