Perhaps you should try some spelling variations:
jeong dahyeon » jeong hyeok
zhang ming » zhang xin
ming jeong » min jeong, ming kong
wang wang » wang yang, wang liang, wang yan
wang yong » wang yang, wang hyoung, wang yan
ren zhang » zhen zhang, bin zhang, ceo zhang
yan hai » dang hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang wang) OR (wang yong)) yan hai ren zhang ming jeong dahyeon ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang wang) OR (wang yong)) yan hai ren zhang ming jeong dahyeon ;*".