Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
song ming » song bing, song min, gong min
yang jun » yang jui, pang jun, yang jin
li song » li cong, li rong, kim song
long do » long d, longer do, long ago
long du » long d, long run, long did
li li » li lin, li l, li lu

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yang yang) or (yang jun)) li li song ming ((long do) or (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang yang) OR (yang jun)) li li song ming ((long do) OR (long du)) ;*.