Perhaps you should try some spelling variations:
man changed » main changes, has changed, can change
china wong » china hong, china long, china wang
a changed » _ changed, a change, has changed
wong john » wrong john, kong john, longo john
bonn shin » song shin, bonn ein, bonn mein
long han » long chain, long thanh, long haul
bonn die » kann die, wenn die

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

• Performing a fuzzy search may retrieve terms with similar spellings: long han ((man changed) OR (a changed)) china wong john ((bonn shin) or (bonn die)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long han ((man changed) OR (a changed)) china wong john ((bonn shin) OR (bonn die)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "long han ((man changed) OR (a changed)) china wong john ((bonn shin) or (bonn die)) ;".
• Adding a wildcard symbol may retrieve word variants: long han ((man changed) OR (a changed)) china wong john ((bonn shin) or (bonn die)) ;*.