Perhaps you should try some spelling variations:
cost learning » clt learning, ct learning, past learning
crisis wrong » crisis around, crisis enron
wang liang » wang yang
wrong who » wrong why, wrong what, wrong when
yang can » yang fan, yang dean, yang yang
can cost » can costa, can lost, can post

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang liang) or (wang yan)) yang can cost learning crisis wrong who ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang liang) OR (wang yan)) yang can cost learning crisis wrong who ;*.