Perhaps you should try some spelling variations:
fang yuan » wang yuhan, wang yan, meng yuan
yan guan » yan yuan, yang guang, yihan guan
gan guan » quan guan, fan guon, gui guan
wong sau » wong sam, wong siu, wong shiu
dr rene » der rent
hong yu » wong yue
wang » wing, wan, lang
ling » long, line, wing

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((yan guan) OR (gan guan))) OR (fang yuan)) dr rene ling li ((wong sau) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yan guan) OR (gan guan))) or (fang yuan)) dr rene ling li ((wong sau) or (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((((yan guan) OR (gan guan))) or (fang yuan)) dr rene ling li ((wong sau) or (hong yu)) ;*.