Perhaps you should try some spelling variations:
dinh tuan » binh thuan, dinh tung, anh tuan
yang john » young john, king john, yang jin
john kong » john king, john song, john wong
anh tran » oanh tran, anh tuan, binh tran
ren yang » ren yan, chen yang, dan yang
hua ren » hua chen
wang » wing, lang
sar » sara, star, saur

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 wan) ((dinh tuan) or (anh tran)) hua ren yang john kong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) ((dinh tuan) OR (anh tran)) hua ren yang john kong sar ;.
• Adding a wildcard symbol may retrieve word variants: (wang or wan) ((dinh tuan) or (anh tran)) hua ren yang john kong sar ;*.