Perhaps you should try some spelling variations:
zhang xiabo » zhang xiaobo, zhang xiao, zhong xiao
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yang xiabo » zhang xiaobo
zhang hay » zhang han, zhang fan, zhang yan
yan yun » yan yuan, yang yun, yan kun
yun tan » yun jang
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang or lang) hyoung yan yun tan ((yang xiabo) OR (zhang xiabo)) zhang hay ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) hyoung yan yun tan ((yang xiabo) OR (zhang xiabo)) zhang hay ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or lang) hyoung yan yun tan ((yang xiabo) OR (zhang xiabo)) zhang hay ;*".