Perhaps you should try some spelling variations:
wang handling » wang yanling, cargo handling, waste handling
chen shuang » chen chuan, chen chung, chen huigang
chen huang » chen huigang, chen yugang, chen chuan
seung yeon » jeong yeon, seung joon, seung won
dong yang » dong hoang, wang yang, yang yang
min seung » min jeong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong yang) or (wang handling)) ya yu ((chen huang) OR (chen shuang)) min seung yeon ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (wang handling)) ya yu ((chen huang) OR (chen shuang)) min seung yeon ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (wang handling)) ya yu ((chen huang) OR (chen shuang)) min seung yeon ;".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (wang handling)) ya yu ((chen huang) OR (chen shuang)) min seung yeon ;*.