Perhaps you should try some spelling variations:
yang john » young john, king john, yang jin
john song » john wong, john bonn, john ngosong
yan guan » gan guan, yang guang, yihan guan
yan yuan » fang yuan, nan yan, yan clan
hua chen » jui chen, yu chen, hua ren
song sam » wong sam, kong sar, song pae
a chen » ta chen, _ chen, n chen

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: lang ((yan guan) or (yan yuan)) ((hua chen) OR (a chen)) yang john song sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang ((yan guan) OR (yan yuan)) ((hua chen) OR (a chen)) yang john song sam ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((yan guan) or (yan yuan)) ((hua chen) OR (a chen)) yang john song sam ;".
• Adding a wildcard symbol may retrieve word variants: lang ((yan guan) or (yan yuan)) ((hua chen) OR (a chen)) yang john song sam ;*.