Perhaps you should try some spelling variations:
rent learning » recent learning, event learning, set learning
zhang yuhui » zhang hui
yang hua » wang hua, yang hui, ying hua
yang jui » yang judy, yang di, yang xi
wang » wing, wan, lang
kong » long, hong, pong
sar » sara, star, saur

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 yan ((((yang hua) OR (yang jui))) OR (zhang yuhui)) rent learning during kong sar ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan ((((yang hua) or (yang jui))) or (zhang yuhui)) rent learning during kong sar ;*.