Perhaps you should try some spelling variations:
lost learning » close learning, lost earnings, past learning
liang yang » liang ying, wang yang, huang yang
loss among » costs among, jobs among
yang yang » wang yang, wang yan
among ers » among peers, among users, among east
can lost » can cost, can lose, can post

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 yang) OR (yang yang)) can lost learning loss among ers ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((liang yang) or (yang yang)) can lost learning loss among ers ;*.