Perhaps you should try some spelling variations:
wang zhang » wang zheng, wang luhang, zhang zhang
zhang ying » zhang ming, zhang jing, zhang ping
song ming » song bing, song min, gong min
wang dan » wang yan, wang ban, wang yidan
run wang » yuan wang, run wage, von wang
wong yue » wang yue, hong yu
dan hat » dann hat, man hat, ban hate

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang dan hat run wang zhang ying ((wong yue) or (song ming)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dan hat run wang zhang ying ((wong yue) OR (song ming)) ;.
• Adding a wildcard symbol may retrieve word variants: wang dan hat run wang zhang ying ((wong yue) or (song ming)) ;*.