Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
wang liang » wang yang
zhang amin » zhang pimin, zhang ming, zhang xin
dong sheng » dung sheng, hong sheng, fang sheng
amin dong » amin hong, shin dong
how ceo » how ceos, how cios, how cern
how co » how cios, how ceos, how cool

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 ((yang guang) OR (wang liang)) ((how ceo) OR (how co)) zhang amin dong sheng ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang guang) or (wang liang)) ((how ceo) OR (how co)) zhang amin dong sheng ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang guang) or (wang liang)) ((how ceo) OR (how co)) zhang amin dong sheng ;*.