Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
juan rene » juan rana
juan meng » jui meng, yuan ming
yang jae » yang jie, myung jae, yang jui
jae song » jae yong, jie song, jae young
song sau » wong sau, kong sar, song pae
yan yan » yan yuan, nan yan, wang yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wai ((yan yan) OR (yang yang)) ((juan rene) or (juan meng)) yang jae song sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wai ((yan yan) OR (yang yang)) ((juan rene) OR (juan meng)) yang jae song sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wai ((yan yan) OR (yang yang)) ((juan rene) or (juan meng)) yang jae song sau ;*".