Perhaps you should try some spelling variations:
lost earnings » low earnings, gross earnings, cash earnings
costs among » costs along, customs among
wang zhang » wang zheng, wang luhang, zhang zhang
loss among » jobs among
yin yang » ying yang, yi yang, yin hang
yin fang » yin hang, chin fang, jing fang

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 zhang ((yin yang) OR (yin fang)) lost earnings ((loss among) OR (costs among)) ers ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang zhang ((yin yang) OR (yin fang)) lost earnings ((loss among) or (costs among)) ers ;~".
• Adding a wildcard symbol may retrieve word variants: wang zhang ((yin yang) OR (yin fang)) lost earnings ((loss among) or (costs among)) ers ;*.