Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang john » young john, king john, yang jin
john wong » john song, john bonn
lang yan » wang yan, zhang yan, yang yang
hua rene » juan rene
wong sam » wong sau, wong lai, kong sar
hua ren » hua 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) OR (wang yang)) tan ((hua rene) or (hua ren)) yang john wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang yan) OR (wang yang)) tan ((hua rene) OR (hua ren)) yang john wong sam ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) OR (wang yang)) tan ((hua rene) or (hua ren)) yang john wong sam ;*".