Perhaps you should try some spelling variations:
yuhan chang » yuan chang, han chang, yuhuan huang
chang money » than money, can money, chad money
linear case » linear code, linear state, linear least
wang yuhan » wang luhang, wang yan, wang yidan
a linear » _ linear
wong yue » wang yue, hong yu
money a » money _

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuhan chang money a linear case ((wang zhi) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan chang money a linear case ((wang zhi) OR (wong yue)) ;*.