Perhaps you should try some spelling variations:
wing hyoung » wang hyoung, min hyoung, hwang byoung
yang guang » yang yang, yan guan, yang liang
tan yang » dan yang, tan ying, tan yong
yang duc » yang du, sang duck, yang di
duc phan » duc phung, duc tran, dan phan
phan hai » pham thai, khan hadi, shang hai
nan yan » nan ya, wang yan, qian yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing hyoung ((nan yan) or (yang guang)) tan yang duc phan hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing hyoung ((nan yan) OR (yang guang)) tan yang duc phan hai ;*.