Perhaps you should try some spelling variations:
di terence » di erence, liu terence, _ terence
lang yan » wang yan, wang yang, zhang yan
yan yuan » yan guan, fang yuan, nan yan
kian lia » kian wie
dr rene » der rent
rong yu » hong yu, rong su, wong yue
tan li » tang li, gan li, tan yi

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 yuan ((dr rene) OR (di terence)) ((((tian li) OR (tan li))) OR (kian lia)) rong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan yuan ((dr rene) or (di terence)) ((((tian li) OR (tan li))) or (kian lia)) rong yu ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan yuan ((dr rene) or (di terence)) ((((tian li) OR (tan li))) or (kian lia)) rong yu ;*.