Perhaps you should try some spelling variations:
changed john » change john, changed our, changed rome
changed post » change cost, changed east, changed pt
wang yang » wang yan, wang liang, wang yanling
yang zayn » yang fan
khan syed » ahsan syed, shah syed, khan sher
can save » can have
hong yu » wong yue

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 yang zayn ((can save) OR (khan syed)) ((changed john) OR (changed post)) hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang zayn ((can save) or (khan syed)) ((changed john) OR (changed post)) hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang zayn ((can save) or (khan syed)) ((changed john) OR (changed post)) hong yu ;*.