Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang tran » nang trang, yang dean, yang fan
yang john » young john, king john, yang jun
yang jin » yang jie, yang jun, ying jin
wong sam » wong sau, wong lai, kong sar
tran yi » tan yi, tran thi, tran dai
yi chen » jui chen

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

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