Perhaps you should try some spelling variations:
liu terence » muir terence
chong yun » chang yun, hong yu, chen yun
lang yan » wang yan, wang yang, zhang yan
yan guan » gan guan, yan yuan, yang guang
rong yun » rong yu, song yun, young yun
dr rene » der rent
tian li » tan li, kian lia

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: lang yan guan ((dr rene) OR (liu terence)) tian li ((rong yun) OR (chong yun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan guan ((dr rene) or (liu terence)) tian li ((rong yun) OR (chong yun)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan guan ((dr rene) or (liu terence)) tian li ((rong yun) OR (chong yun)) ;*.