Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
china reza » china real
china ren » china loren, china real, china r
yan wang » yuan wang, yang yang, qian wang
kang kim » kanaga kim, tan kim, yong kim
kim dong » kim song, kim jong, kim young
dong yue » wong yue, hong yu, wang yue

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) OR (china ren)) kang kim dong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yuan cheng)) hang ((china reza) OR (china ren)) kang kim dong yue ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (yuan cheng)) hang ((china reza) OR (china ren)) kang kim dong yue ;".
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yuan cheng)) hang ((china reza) OR (china ren)) kang kim dong yue ;*.