Perhaps you should try some spelling variations:
wang handling » wang yanling, cargo handling, waste handling
jeong hyeok » jeong dahyeon
chen chang » chen chung, chin chang, shen chang
yang yang » wang yang
chang mae » chang ha, changes made
mae jeong » lee jeong, min jeong
hua chen » jui chen, yu chen, a chen
yi hua » li hua, ya hua, yi hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yang yang) OR (wang yan))) or (wang handling)) yi hua chen chang mae jeong hyeok ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yang) OR (wang yan))) OR (wang handling)) yi hua chen chang mae jeong hyeok ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yang) OR (wang yan))) or (wang handling)) yi hua chen chang mae jeong hyeok ;*".