Perhaps you should try some spelling variations:
waste handling » data handling
wang handling » wang yanling, cargo handling, data handling
fan ying » fan xing, ran ying, tan ying
jin kong » jin kang, jin song, king kong
jin ying » li ying
hua fan » hua ban
spur » sur

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: ((wang handling) OR (waste handling)) wang hua fan ying ((jin kong) OR (jin ying)) spur ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang handling) OR (waste handling)) wang hua fan ying ((jin kong) or (jin ying)) spur ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang handling) OR (waste handling)) wang hua fan ying ((jin kong) or (jin ying)) spur ;*.