Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
hang china » han china, change china, ghana china
china reza » china real, china ren
yan wang » yuan wang, yang yang, qian wang
kim dong » kim song, kim jong, kim young
dong yue » wong yue, hong yu, wang yue
yong » young, long, hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (yuan cheng)) hang china reza yong kim dong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yuan cheng)) hang china reza yong kim dong yue ;.
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yuan cheng)) hang china reza yong kim dong yue ;*.