Perhaps you should try some spelling variations:
ching chen » china chen, ching hea, chin chin
chang chen » chang ch'un, chang chuan, change when
yang john » young john, king john, yang jin
john song » john wong, john bonn, john ngosong
song sein » song shin, song jin, song min
long tin » long tip, long trinh, long time
tin tan » tan tan, tin can, wing tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: long tin tan ((ching chen) OR (chang chen)) yang john song sein ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "long tin tan ((ching chen) OR (chang chen)) yang john song sein ;".
• Adding a wildcard symbol may retrieve word variants: long tin tan ((ching chen) OR (chang chen)) yang john song sein ;*.