Perhaps you should try some spelling variations:
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
john wong » john bonn
john song » john bonn, john ngosong
jin wong » jin song, jin ying, jin kang
xi lu » xu lu, xi bu, yi lu
li lu » li ju, li l, li li

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 liang yang ((xi lu) OR (li lu)) yang ((jin wong) OR (((john wong) OR (john song)))) sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yang ((xi lu) or (li lu)) yang ((jin wong) or (((john wong) OR (john song)))) sau ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yang ((xi lu) or (li lu)) yang ((jin wong) or (((john wong) OR (john song)))) sau ;*.