Perhaps you should try some spelling variations:
di terence » di erence, liu terence, _ terence
lang yan » wang yan, wang yang, zhang yan
yan guan » gan guan, yan yuan, yang guang
song yun » song byung, chong yun, young yun
dr rene » der rent
tian li » tan li, kian lia
li song » li cong, li rong, kim song

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 (di terence)) tian li song yun ;~.
• Adding a wildcard symbol may retrieve word variants: lang yan guan ((dr rene) or (di terence)) tian li song yun ;*.