Perhaps you should try some spelling variations:
fang yuan » wang yuhan, wang yan, meng yuan
yan guan » gan guan, yan yuan, yang guang
wong sau » wong siu, wong shiu, wong lai
wong sam » wong lai, kong sar, von sam
wong yue » wang yue, hong yu
dr rene » der rent
lang li » liang li, ling li, tang li
wang » wing, wan

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 (fang yuan)) dr rene lang li ((((wong sau) OR (wong sam))) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan guan) OR (fang yuan)) dr rene lang li ((((wong sau) OR (wong sam))) OR (wong yue)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan guan) or (fang yuan)) dr rene lang li ((((wong sau) OR (wong sam))) or (wong yue)) ;*".