Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
yan guan » yan yuan, yihan guan, quan guan
gan guan » quan guan, fan guon, gui guan
ii chang » vii chang, ii changes, iii change
yi chang » ying chang, jin chang, vii chang
hong yu » wong yue
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((((yan guan) or (yang guang))) or (gan guan)) hsu ((ii chang) OR (yi chang)) tan hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((yan guan) OR (yang guang))) OR (gan guan)) hsu ((ii chang) OR (yi chang)) tan hong yu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yan guan) or (yang guang))) or (gan guan)) hsu ((ii chang) OR (yi chang)) tan hong yu ;*".