Perhaps you should try some spelling variations:
wang yang » wang liang, wang yanling
tuan hua » tuan vu, yuan hui
tan chia » tuan china, than china, can china
dan yang » daun yang, tan yang, yang yang
yang jun » yang jui, pang jun, yang jin
jun wong » john wong
wong sau » wong sam, wong siu, wong shiu
tan hua » wang hua, tan puay

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) or (wang yan)) ((((tan hua) OR (tuan hua))) or (tan chia)) dan yang jun wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang yan)) ((((tan hua) OR (tuan hua))) OR (tan chia)) dan yang jun wong sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (wang yan)) ((((tan hua) OR (tuan hua))) or (tan chia)) dan yang jun wong sau ;*".