Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang john » young john, king john, yang jin
john song » john wong, john bonn, john ngosong
tuan hua » tan hua, tuan vu, yuan hui
thanh vu » thanh van, thanh _
tan chia » tuan china, than china, can china
dan yang » daun yang, tan yang, yang yang
song sar » kong sar, using sar, song pae

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 ((((tuan hua) or (thanh vu))) or (tan chia)) dan yang john song sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ((((tuan hua) OR (thanh vu))) OR (tan chia)) dan yang john song sar ;.
• Adding a wildcard symbol may retrieve word variants: wang yang ((((tuan hua) or (thanh vu))) or (tan chia)) dan yang john song sar ;*.