Perhaps you should try some spelling variations:
yang john » young john, king john, yang jin
wang yang » wang yan, wang liang, wang yanling
john wong » john song, john bonn
anh tuan » anh tran, dinh tuan, oanh tran
tuan fei » yuan fei, han fei, yan fei
fei wang » wei wang, fei huang, li wang
wong sam » wong sau, wong lai, kong sar

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang or lang) or wan) anh tuan fei wang yang john wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang OR lang) OR wan) anh tuan fei wang yang john wong sam ;.
• Adding a wildcard symbol may retrieve word variants: ((wang or lang) or wan) anh tuan fei wang yang john wong sam ;*.