Perhaps you should try some spelling variations:
wang handling » wang yanling, cargo handling, waste handling
dong yang » dong hoang, wang yang, yang yang
rene yuan » meng yuan
hua rene » hua ren, juan rene
yuan tan » huan t'an, yuan kang, yuan ting
tan hua » tuan hua, wang hua, tan chia
hong yu » wong yue

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)) tan hua rene yuan tan hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (wang handling)) tan hua rene yuan tan hong yu ;*.