Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, chin chang
ying chang » jin chang, yi chang, yin hang
chen yulan » chen yugang, chen yulu, chen yun
wang fang » weng fang, wang liang, zhang fang
wang yang » wang yan, wang liang, wang yanling
chik fang » chin fang, cai fang, chih hang
sheng » cheng, zheng

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 fang) OR (wang yang)) chen yulan ((ying chang) OR (china zhang)) chik fang sheng ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang fang) OR (wang yang)) chen yulan ((ying chang) or (china zhang)) chik fang sheng ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang fang) OR (wang yang)) chen yulan ((ying chang) or (china zhang)) chik fang sheng ;*.