Perhaps you should try some spelling variations:
been changed » been changes, when change, we changed
man changed » main changes, has changed, a changed
zhong zhi » zhang zhi, hong ghi, zhong tai
wei yang » pei yang, wei wang, wei yang's
yang tan » yang fan, yang dean, yang yang
tan hua » tuan hua, wang hua, tan chia
hong ng » hong kong, hong jong, hong hong

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: wei yang tan hua ((been changed) OR (man changed)) made ((hong ng) OR (zhong zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wei yang tan hua ((been changed) OR (man changed)) made ((hong ng) or (zhong zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wei yang tan hua ((been changed) OR (man changed)) made ((hong ng) or (zhong zhi)) ;*.