Perhaps you should try some spelling variations:
wang luhang » wang liang, wang lihong, wang susheng
china zhang » china chang, chin chang, china han
cheng zhang » cheng han, zhen zhang, chen zheng
wang yuhan » wang yan, wang yidan, fang yuan
wei liang » wei qiang, wee liang, wei shang
liang sun » liang dan, liang tan, wing sun
lang 4 » lang 3, lang _, lang a

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 yuhan) OR (wang luhang)) lang 4 ((china zhang) OR (cheng zhang)) wei liang sun ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yuhan) or (wang luhang)) lang 4 ((china zhang) OR (cheng zhang)) wei liang sun ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yuhan) or (wang luhang)) lang 4 ((china zhang) OR (cheng zhang)) wei liang sun ;*.