Perhaps you should try some spelling variations:
jeong dahyeon » jeong hyeok
wang handling » wang yanling, cargo handling, waste handling
zhang silan » zhang jian, zhang qilun, zhang tian
shen zhang » zhen zhang, shen chang, cheng zhang
yang yang » wang yang, wang yan
hua shen » hua chen, han shen, hua ren

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: ((yang yang) OR (wang handling)) ya hua shen zhang silan ((hong dahyeon) OR (jeong dahyeon)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang handling)) ya hua shen zhang silan ((hong dahyeon) OR (jeong dahyeon)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang handling)) ya hua shen zhang silan ((hong dahyeon) OR (jeong dahyeon)) ;*.