Perhaps you should try some spelling variations:
wang liang » wang yang
liang wang » liang dan, liang tan, liang ying
zhang minh » zhang ming, zhang xin, chang min
zhong zhi » zhang zhi, hong ghi, zhong tai
hua zhen » hua zhong, hua ren, hua zhao
hua chen » jui chen, yu chen, a chen
hong hai » shang hai, zhong tai, dang hai

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 wang ((hua zhen) OR (hua chen)) zhang minh ((hong hai) OR (zhong zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang wang ((hua zhen) OR (hua chen)) zhang minh ((hong hai) or (zhong zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang wang ((hua zhen) OR (hua chen)) zhang minh ((hong hai) or (zhong zhi)) ;*.