Perhaps you should try some spelling variations:
wang lihong » wang liang, wang shiyong
tuan hua » tuan vu, yuan hui
rent yan » ren yan, rent a
wong sau » wong sam, wong siu, wong shiu
tan hua » wang hua, tan chia, tan puay
yan jiu » yang jie, yang jin, pang jiu
sar » sara, star, saur

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang lihong) OR (wang yan)) ((tan hua) OR (tuan hua)) rent yan jiu ((wong sau) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang lihong) or (wang yan)) ((tan hua) OR (tuan hua)) rent yan jiu ((wong sau) or (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang lihong) or (wang yan)) ((tan hua) OR (tuan hua)) rent yan jiu ((wong sau) or (kong sar)) ;*.