Perhaps you should try some spelling variations:
yihan guan » yan guan
fang yuan » wang yuhan, wang yan, meng yuan
chang kin » chang min, chang ann, chang won
kin keong » king kong, min jeong
keong shu » cong shu, jeong su
yan yuan » yan guan, nan yan, yan clan
yi chin » ii china, chi chin, yap chin
yi chen » jui chen

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: wan ((((yan yuan) OR (fang yuan))) OR (yihan guan)) ((yi chin) OR (yi chen)) chang kin keong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((((yan yuan) OR (fang yuan))) or (yihan guan)) ((yi chin) or (yi chen)) chang kin keong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((((yan yuan) OR (fang yuan))) or (yihan guan)) ((yi chin) or (yi chen)) chang kin keong shu ;*.