Perhaps you should try some spelling variations:
yihan guan » yan guan
yang guang » yang yang, yan guan, yang liang
ran ying » fan ying, tan ying, jin ying
ying duc » tung duc, ying hua
wang » wing, wan, lang
hyoung » young, hyong, kyoung
dang » dan, lang, dans
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang hyoung ((yihan guan) or (yang guang)) ran ying duc dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang hyoung ((yihan guan) OR (yang guang)) ran ying duc dang hai ;*.